What is a confidence interval in statistics?

What are Confidence Intervals in Statistics? By Saul McLeod, published June 10, 2019.

Step-by-step explanation:

The confidence interval (CI) is a range of values that's likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval. hope this helps you :)

the answer is 31.27mph

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right