Answer:
Multi facets
Step-by-step explanation:
First company surveys best customers so they are highest spending
First company standard deviation is high @ $62 so their spends are $606 a year plus or minus $180 (rounded up)
Second company has a Random sample so includes all customers
Second company has larger number of responses
Second company has a range of plus or minus $40
Answer:
using the formula
we replace the coordinates
the we calculate
the answer will be square 100 which will give us 10
first, find the square root of 45. and make x normal. a square root cancels out a square. It should be 6.7x