Colin knows his book is 1 foot long. He uses his book to help him estimate the length of his bike.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%