I need help in this question of Probabiltiy The 21st Century grade of students in a certain school is normally distributed with a mean of 87.18 and a standard deviation of 2.99. What range of scores represents the middle 75% of the students? a)(85.12,91.25) b)(82.5,90.5) c)(81.53,88.67) d)(83.74,90.62)

I need help in this question of Probabiltiy The 21st Century grade of students in a certain school is normally distributed with a mean of 87.18 and a standard deviation of 2.99. What range of scores represents the middle 75% of the students? a)(85.12,91.25) b)(82.5,90.5) c)(81.53,88.67) d)(83.74,90.62)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 1GP

See similar textbooks

Related questions

Q: You have just started a coffee stand at the Saturday Market, and you prepare fresh brewed coffee…

A: given datanormal distributionμ=10σ=1.2

Q: 5. Let X have the pdf f(x) = 5x¹, 0 < x < 1, zero elsewhere. Find the pdf of Y = - 2ln(X).

Q: Problem 3. Let X and Y have the joint pdf f(x, y) = 3x, 0 < y < x < 1, zero elsewhere. Compute p.

Q: 10. Suppose the joint PMF of (X, Y) is given by (0, 1), (1,0), (2, 1) otherwise (a) Are X and Y…

A: f(x,y)=1/3; you (0,1),(1,0),(2,1) Result: X and Y are independent iff p(X=x,Y=y)=P(X=x)P(Y=y)…

Q: The distribution of actual weights of 8-oz chocolate bars produced by a certain machine is normal…

Q: What conclusion would be appropriate for an upper-tailed chi-squared test in each of the following…

Q: Given three events A, B and C such that P(A n B n C) ‡ 0 and P(C|An B) = P(C|B), show that P(A/B nC)…

Q: 4. Two independent random variables X1 and x2 are both uniformly distributed between 9 and 11. Find…

Q: Page 142, 2.6.2.* Let f(x1,x2,X3)=exp[-(x1 + x2 + x3)], 0 < x₁ <∞, 0 < x₂ < ∞, 0 < x3 <∞, = zero…

Q: . The value of P₁ is the number of non- If mp₁, m, np₂, and no₂ are at least 10, we can use the…

A: For Brand A: The sample proportion p̂1 defines the sample proportion of non contaminated chickens of…

Q: (a) Determine P(X ≤ 2). 0.9246 X (b) Determine P(X ≥ 5). 0.0025 X (c) Determine P(1 ≤ x ≤ 4). 0.6390…

A: It is given that the random variable X that is the number of defective boards in a random sample of…

Q: A software organisation employs 80,000 staff members. 16,000 employees are in the sales team, 24,000…

A: Given that a software company has 80,000 staff member. Out of which 16,000 are in sales team, 24,000…

Q: Suppose A and B are events in a sample space with P(A) = 0.61, P(B) = 0.66, P(BUA) = 0.93 Find the…

Q: Let X be some continuous random number whose density function is continuous and everywhere positive:…

A: Consider X as a random variable with a continuous distribution function F.

Q: Let A, B, and C be three events, such that each event has a probability of 1/2, each intersection of…

A: GIVEN Let A, B, and C be three events P(A)=P(B)=P(C)=1/2…

Q: Bivariate data often arises from the use of two different techniques to measure the same quantity.…

A: In this case, x defines the hydrogen concentration using a gas chromatography method and y defines…

Q: A card is drawn from a well-shuffled deck of 52 cards. Find the probability of drawing a diamond or…

A: From the provided information, Total cards in deck = 52 There are 4 suits (diamond, club, spade,…

Q: ||| Computing conditional probability using a two-way frequency... Try Again Your answer is…

A: Dog Cat Total Vaccine 13 17 30 No vaccine 21 9 30 Total 34 26 60

Q: 7. Police plan to enforce speed limits by using radar traps at 4 different locations within the city…

A: given dataP(A)=0.2P(B)=0.1P(C)=0.5P(D)=0.2P(speeding ticket)=P(E)∴P(E|A)=0.40 P(E|B)=0.30…

Q: One of the members of staff from the software organisation travels to Birmingham on a business trip.…

Q: At inspection, 40% of built bubble-jet printers are rejected. Calculate the likelihood that the…

A: Given that, at inspection, 40% of built bubble-jet printers are rejected.

Q: For each of the following assertions, state whether it is a legitimate statistical hypothesis and…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted...…

Q: Answer quickly please A random variable (A) has a mean 55 and a standard deviation of 5. A random…

A: given datavariable A : mean(μA)=55 S.D. (σA)=5variable B : mean (μB)=75…

Q: tautology, contradiction or contingency. [(~pvq) (~qvr)] → (pr)

A: Using given statement , [ ( ~ p V q ) . ( ~ q V r ) ] →( p → r ) In this statement negation ,…

Q: (a) a = 0.05, df = 4, x² = 13.75 O We would reject Ho- O We would fail to reject Ho (b) a = 0.01, df…

A: It is given that an upper-tailed Chi-Squared test. Here, need to find out the conclusion. Note:…

Q: A binomial probability experiment is conducted with the given parameters. Compute the probability of…

A: The variable of interest is x that defines the number of successes.

Q: list n 4 on 5 cion 6 stion 7 estion 8 estion 9 estion 10 p me solve this B K Among 8912 cases of…

Q: B C 3,3,3,3,3,6 2,2,2,5,5,5 1,4,4,4,4,4 1) Suppose you roll die A and your friend rolls die B. Find…

A: Given Die A = 3,3,3,3,3,6 Die B = 2,2,2,5,5,5 Die C = 1,4,4,4,4,4

Q: Chapter 7: Normal Probability Distributions 7.1 Heights of 10-year-olds. Heights of 10-year-old male…

A: X~N(μ, σ) Emperical rule P(μ-σ< x<μ+σ)=68% P(μ< x<μ+σ)=68%/2=34% P(μ-σ< x<μ)=34%…

Q: Use the contingency table to determine the following probabilities. a. P(A) b. P(B) c. P(C) d. P(D)…

A: From the above contingency table, we can calculate probability for every event. Here grand total is…

Q: The lengths of tables sold at various furniture stores follow a normal distribution with u = 120 cm…

A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 15.6 X~N (120, 15.6)

Q: The average price of a Google Chrome book is P21,100. Assuming that the prices are approximately…

A: GivenMean(μ)=21100standard deviation(σ)=1700

Q: ||| O PROBABILITY Intersection and conditional probability Suppose that a certain college class…

Q: A candy company developed a new consumer product that is expected to earn $1,000 in profit each year…

A: We have given the following data Expected profit when demand is Low =$1000Expected profit when…

Q: Suppose the reaction temperature X (in °C) in a certain chemical process has a uniform distribution…

A: as per bartleby guideline expert have to answer first three subparts only dear student please upload…

Q: Calculate the standard deviation of x and y, then the correlation(x,y)

Q: It is estimated that 88% of senior citizens suffer from sleep disorders and 8% suffer from anxiety.…

A: Let x denotes the citizens suffer from sleep disorders and y denotes the citizens suffer from…

Q: what is a z-score of 80%?

A: 80% z score: alpha=1-0.80 =0.2 alpha/2=0.2/2 =0.1 From standard normal…

Q: Your text is very unclear. could you please rewrite it properly?

A: Given that we have to find the cumulative density function of X (Cdf)

Q: Accounting A research study in England(1) done by The Education Endowment Foundation (EEF) suggests…

Q: Find a. P(A) and P(B) b. P(AUB) c. P(A∩B)

A: It is given that Total = 95 Number of private employees = 83 Number of firms with more than 49…

Q: An experiment consists of testing 10 units for a specified period of time. The probability of the…

Q: he relationship between amount of time spent studying for an exam (X) in hours and the score that…

A: Given: The data set is as below x y 2 65 3 70 3 75 4 70 5 85 6 85 7 90 Assumed…

Q: Three different design configurations are being considered for a particular component. There are…

Q: 4.5. Let N be a nonnegative integer-valued random variable. For nonnegative values aj, j ≥ 1, show…

Q: a. Either you get vaccinated and lessen your chances of getting infected or increase the risk of…

A: Using given statement we denote conjunction by ∧ Disjunction by ∨ Conditional by → Biconditional…

Q: In a typical day, I respond to 3 students emails. What is the probability that in a 5-day work week…

A: Let X denote the number of email responds and it follows Poisson distribution with parameter (λ=3…

Q: 10. Suppose that 5 teachers and 8 students volunteered to be on a graduation committee. The…

A: Given that Teachers = 5 , Students = 8 Committee consists 2 teachers and 3 students Note : nCr =…

Q: a. Is repetition allowed? Select an answer b. Does order matter? Select an answer c. Which operation…

A: Given: total number of person in the class=17 group of 4 person has to be choosen

Q: A random variable has the following distribution find μ. A X P(X) B 3.2 2 4.1 1.85 0 0.1 1 0.3 2 0.4…

Question

I need help in this question of Probabiltiy

The 21st Century grade of students in a certain school is normally distributed with a mean of 87.18 and a standard deviation of 2.99. What range of scores represents the middle 75% of the students?
a)(85.12,91.25)
b)(82.5,90.5)
c)(81.53,88.67)
d)(83.74,90.62)

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution