2. The weekly load allowance of a grade 11 STEM student in an online class in Calculus is shown below together with the associated probabilities. 2 3 4 X P(x) 1 0.05 5 0.20 0.15 0.20 0.40 Find the mean and the variance.

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A:

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A: Given : Population Mean,μ = 86 Population Standard Deviation,σ = 12

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A: Given: A) 1. n=42, μ=25, σ2=6.25

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A: population mean : μ = E(x)

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A: Answer of above question are as follow:

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A: Given Data : Population Mean,μ = 30 Population Standard Deviation,σ = 5

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A: Given : Population mean =67 Sample standard deviation =8 Population standard deviation =8.024961059

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A: *Answer:

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A: Formula

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A: Given information: p0=0.1a=40n=300α=0.01

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A: GivenMean(μ)=15.5standard deviation(σ)=3.6

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A: "Since you have posted a question with multiple subparts, we will solve the first three subparts for…

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A: Given n=7 x=16

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A: here given , mean  = $100 standard deviation =   $12  x= utility bill amount in $

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A: Note: Thank you for the question. Since multiple subparts are posted, we are answering the first…

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Q: C.0.9625 D. 0.9633 A 0.0375 8.0.3075 4. Find the probability value of PIZ-1.0) A 15.87% C. 84.13% D.…

A: I used z- table to calculate the probabilities and z scores.

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A: Given n=14

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A: Given:X~Bin(5,p)so here, n=5Test of hypothesisH0:p=0.3 against H1:p=0.8α=0.05Find: UMP test

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A: a) Given Data : Population Mean,μ = 18 Population Standard Deviation,σ = 3.5

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A: Given information: r=0.43n=23α=0.01

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A: Given:Log G=x0+cN∑ifi(i-1)Where, x0 is the logarithm of the mid-value of the first interval andc is…

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A: Option 3 is correct A sample consisting of students whose names were drawn from a box all the names…

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A: Given Data : sample size,n= 40 sample standard deviation,s= 4.8

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A: Solution: Given information: n= 35 Sample size x  =1.7 Sample mean μ= 1.5 Population mean

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A: It is given that: μ=110, σ=10.

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A: Given data: Standard deviation  = 0.76 To find: The required sample size (n)

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A: population mean : μ = E(x)