Answer:
29. A
30. B
31. B
32. A
34. B
38. A
Step-by-step explanation:
29. A. All possible answers
B-D Incorrect
30. $44.56 - $10 = $34.56
$34.56 ÷ $0.08 = 432
31. 0.7 × 4k = 2.8k
0.7 × -12 = -8.4
0.7 (4k - 12) = 2.8k - 8.4
32. A = Pi × Radius^2
Large circle = 380.13
Small circle = 201.06
Subtract 380.13 - 201.06 = 179.07
34. 42/500 = 8.4% = 1/12
38. There is a 0 percent chance. It is impossible.
Answer:
The probability that sample mean differ the true greater than 2.1 will be 2.8070 %
Step-by-step explanation:
Given:
Sample mean =46 dollars
standard deviation=8
n=53
To Find :
Probability that sample mean would differ from true mean by greater than 2.1
Solution;
<em>This sample distribution mean problem,</em>
so for that
calculate Z- value
Z=(sample mean - true mean)/(standard deviation/Sqrt(n))
Z=-2.1/(8/Sqrt(53))
Z=-2.1*Sqrt(53)/8
Z=-1.91102
Now for P(X≥2.1)=P(Z≥-1.91102)
Using Z-table,
For Z=-1.91
P(X>2.1)=0.02807
Answer:
Yes i do the answer is C
Step-by-step explanation:
Have a good day:))))
