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sineoko [7]
3 years ago
5

Complete this bank statement. Find the values of a , b, c and d.

Mathematics
1 answer:
raketka [301]3 years ago
6 0

Answer:

A. $680.00

B. $35.00

C. $1401.34

D. $80.00

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Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ
lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.    

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

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P(sample mean is between 7.8 and 8.2 minutes)

P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108

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4 years ago
What is the point slope form of the line with slope 25 that passes through the point (−4,−7) ?
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Answer:

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Step-by-step explanation:


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