Answer:
Well the absolute vaule will allways be postive. Therefore the answer being 2. I Think.
Step-by-step explanation:
Answer:
This statement can be made with a level of confidence of 97.72%.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 8.1 mm
Standard Deviation, σ = 0.5 mm
Sample size, n = 100
We are given that the distribution of thickness is a bell shaped distribution that is a normal distribution.
Formula:
Standard error due to sampling:

P(mean thickness is less than 8.2 mm)
P(x < 8.2)
Calculation the value from standard normal z table, we have,

This statement can be made with a level of confidence of 97.72%.
Answer:
The value of the investment by the end of the month is $59.89.
Percent loss = 20% to the nearest tenth
Step-by-step explanation:
At the end of the month, there was a loss of $13.53 from the $73.42 investment at the beginning of the month.
Value in Dollars = $73.42 - $13.53
= $59.89
The value of the investment by the end of the month is $59.89.
PERCENTAGE LOSS =
(CP - SP / CP ) * 100
= ($73.42 - $59.89 / $73.42) * 100
= ($13.53 / $73.42) * 100
= 0.184 * 100
= 18.43%
= 20% to the nearest tenth
Enjoy! Maths is fun
Answer:
3rd 1 hope this helps
Step-by-step explanation: