Assume that when adults with smartphones are randomly​ selected, 44​% use them in meetings or classes. If 6 adult smartphone users are randomly​ selected, find the probability that at least 2 of them use their smartphones in meetings or classes.

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Q: Problem Suppose the number of beds in a sample of 12 private hospitals and 15 public hospitals were…

A: For Private hospital:  5th percentile is, P5= 5*(12+1)/100 th term = 0.65th term = 1st term  = 127…

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Q: 0.2 0.7 1.9 5.1 3.5 0.2 0.8 2.3 5.6 8.9 0.2 0.8 2.5 6.4 10.5 2₁ Mbps Type an integer or a decimal.…

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A: Given,Mean(M)=63a raw score(X)=54Z-score=-0.75

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A: Farmula used  E(X)=∑xP(X=x)

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Q: sider a contingency table with two rows and six columns. a. Find the degrees of freedom. b. Find the…

A: Given that  Number of row =2 Number of Column =6

Q: Problem Suppose the number of beds in a sample of 12 private hospitals and 15 public hospitals were…

A: For Private hospital:  5th percentile is, P5= 5*(12+1)/100 th term = 0.65th term = 1st term  = 127…

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A: Given data:…

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Q: ssume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or…

A: P(use smart phiones in meetings or classes)= p = 0.57n = 30 aduls selected x = no. of adults use…

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Q: a. Calculate μ, o, and o. b. Graph p(x). Locate , μ-2, and μ + 2 on the graph. c. What is the…

A: Data given X -4 -3 -2 -1 0 1 2 3 4 P(X=x) 0.02 0.07 0.10 0.15 0.30 0.18 0.10 0.06 0.02

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A: Given that: Expected ratio Observed Frequency 4 stripes 57 3 spots 38 9 stripes/spots 82

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Q: Phone calls arrive at a switchboard at an average rate of λ = 2 per minute. Assume that the number…

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A: Given data, 2,9,15,2,14,9,12,7,4,9here we have to find out the range , population mean and…

Q: Let x be the number of errors that appear on a randomly selected page of a book. The following table…

A: X p(X) X*p(X) X2*p(X) 0 0.73 0 0 1 0.16 0.16 0.16 2 0.06 0.12 0.24 3 0.04 0.12 0.36 4 0.01…

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Q: Prof that' For a fixed B with P(B) > 0, P(A l B) is probability function.

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Q: i. Which store has the highest percentage increase from Month 1 to Month 2?

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Q: Data in ascending order:…

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A: We know that, Confidence interval for population mean is given by :- ( x¯ -E ,  x¯+ E ) Where , x¯…

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Q: Problem 1: Create a contingency table (with observed and expected frequency) out of the following…

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Q: choose the correct answer Which of the following is NOT true about Frequency Distribution Table?…

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Q: he following data consists of birth weights (pounds) of a sample of newborn babies at local K…

A: We have given that,  The sample data is,  7.1, 9.3, 8.3, 9.1, 6.9, 7.5, 7.7, 9.2, 7.6, 6.8, 7.4…

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A: For the given data, we need to calculate  the 90% confidence interval.

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Q: Christopher has collected data to find that the total snowfall per year in Laytonville has a normal…

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Q: 1 2 3 3-3 Types of Error; 3-4 Propagation of Uncertainty from Random Error If A = 3.475 (+0.002), B…

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Q: (6) A pizzeria delivers a pizzas to each customer and incurs a cost of $1 per unit and mile. Each…

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Q: b. How many students spent between 40 and 60 minutes on social media? 0- c. What percent of the…

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