Answer:
The answer is x = 7. Hope this helps.
Answer:
Step-by-step explanation:
1.
-4, -2, 0, 4, 10
2.
-2.9, -2.83, -2.09, 2.07, 2.56
3.
-3, -1/10, 1/10, 1/2, 7/8
4.
-3, -2, -0.8, -1/10, 1/2, 0.8, 7
this image might help :))
Answer:
5
Step-by-step explanation:
Using the Pythagorean theorem:
a^2 + b^2 = c^2
3^2 + 4^2 = c^2
9 + 16 = c^2
c^2 = 25
c = 5
Answer:
a) Margin of error = 166.311
b) sample size ≥ 62
Step-by-step explanation:
Given:
Average cost = $1599
Sample size = 50 persons
Standard deviation = $600
Confidence level is 95%
a) Margin of error = 
Now for confidence level of 95% z-value = 1.96
Thus,
Margin of error = 
or
Margin of error = 166.311
b) For Margin of error ≤ 150
≤ 150
or
≤ 150
or
≤ √n
or
√n ≥ 7.84
or
n ≥ 61.4656
Therefore,
sample size ≥ 62