Sample ranges List all 10 possible SRSs of size n = 3, calculate the range of quiz scores for each
sample, and display the sampling distribution of
the sample range on a dotplot.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

- (2, -7)

- lines r and s and lines t and u must be parallel

after 1 year: 221 deer

step-by-step explanation:

30% of 170 is 51. 170+51=221

apex says the answer is true