To construct a confidence interval for a population mean when a sample size is small, the population variance must be known?

True or False

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

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