In a recent survey of 645 working Americans ages 25-34, the average weekly amount spent on lunch as $44.02 with standard deviati

Question

3 years ago

8

In a recent survey of 645 working Americans ages 25-34, the average weekly amount spent on lunch as $44.02 with standard deviati

on $2.81. The weekly amounts are approximately bell-shaped.
a. Estimate the percentage of amounts that were less than $38.40. Round the answer to one decimal place. Approximately % of the amounts were less than $38.40.
b. Estimate the percentage of amounts that are between $41.79 and $47.41.
c. Estimate the percentage of amounts that are at least $38.98.
d. Between what two values will approximately 95% of the amounts be?

Mathematics

1 answer:

harina [27] · Answer 1 · 2022-03-11T14:31:03+03:00

harina [27]3 years ago

4 0

Answer:

use photo math it's great and free