Assume that 1600 births selected and 72 of the births are girls. Use subjective judgement to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high

A. The number of girls is significantly low.

B. The number of girls is significantly high

C. The number of girls is neither significantly low nor significantly high

D. It is imposible to make a judgment with the given information

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:

the answer is 13 cm

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.