Answer:
The sample size must be approximately 211.
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= 654.1
Alpha, α = 0.02
Population standard deviation, σ = 311.7
Margin of error = 50
Formula:
Putting all the values, we get,

Thus, the sample size must be approximately 211.
-3=7x-10. -7x=3-10. X=1. You can check the answer by plugging in the numbers.
Answer:
50
Step-by-step explanation:
<u>Definition of whole number: </u>Whole numbers are a set of numbers including the set of natural numbers (1 to infinity) and the integer '0'
The formula for finding the number of whole numbers between to given numbers “m” and “n” (assuming that “m” and “n” are included in the listing, and that “n” is the larger value) is:
(n - m) + 1
And the formula gives:
(79 - 30) + 1 = 49 + 1 = 50
The -3 shifts the graph 3 units to the right
and The + 9 moves the graph upwards 9 units
Its B