Answer:
$31.55
Step-by-step explanation:
She earns $25.75 one week and $37.80 another week that means she earned $25.75 + $37.80 = $63.55 in total
She spent $32 therefore she has $63.55 - $32 = $31.55 left
Answer:
R = 12
L = 84
Step-by-step explanation:
R + L =96
L = 7R
R = 1R
L = 7R
1 R + 7R = 8R
R = 12
L = 84
hope it helps,
Answer:
22+ r = 30
I think this is the answer
Answer:
b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.
Step-by-step explanation:
Confidence interval:
Confidence level of x%
We build from a sample.
Between a and b.
Intepretation: We are x% sure that the population mean is between a and b.
In this question:
90%
45 CEO's
Between ($139,048, $154,144).
So
We are 90% sure that the mean salary of all CEO's falls within this interval.
The correct answer is:
b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.
#9
3/8 x 4/11 = 3/22
#12
9/20 x 4/5 = 9/25
