The number of accidents at a dangerous intersection in smalltown during each of the last six years is as follows: 0, 1, 1, 2, 3, 5. for this data set, the standard deviation of the number of accidents in a year (rounded to the nearest tenth) is: (a) mean < median < mode (b) mean < mode < median (c) median < mean < mode (d) mode < mean < median (e) mode < median < mean

Correct answer is (E)

Step-by-step explanation:

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24+x=y

step-by-step explanation:

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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