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Triss [41]
3 years ago
11

What does the peak of the graph represent?

Mathematics
1 answer:
slavikrds [6]3 years ago
5 0

Answer: i would need to know more about the graph before giving a definate awncer

Step-by-step explanation:

for now i think the reasonable awncer  to the question has got to be A, because it is increasing

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Please I don't have much time Help me please!!!
vekshin1

Answer:

C

Step-by-step explanation:

The shape moves to the left by 8 and up by 7.

4 0
2 years ago
Read 2 more answers
A normal distribution has a standard deviation equal to 39. What is the mean of this normal distribution if the probability of s
Naily [24]

Answer:

The mean is \mu = 131

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\sigma = 39

What is the mean of this normal distribution if the probability of scoring above x = 209 is 0.0228?

This means that when X = 209, Z has a pvalue of 1-0.0228 = 0.9772. So when X = 209, Z = 2.

Z = \frac{X - \mu}{\sigma}

2 = \frac{209 - \mu}{39}

209 - \mu = 2*39

\mu = 209 - 78

\mu = 131

The mean is \mu = 131

7 0
3 years ago
A. Domain.....<br><br> B. Domain.....<br><br> C. Domain.....<br><br> D. Domain
shusha [124]
The answer to the question is b

7 0
3 years ago
An item is regularly priced at $69. David bought it at a discount of 55% off the regular price. How much did David pay?
zysi [14]

Answer:

37.95

Step-by-step explanation:

55% of $69

so 0.55 x 69 = 37.95

8 0
3 years ago
Read 2 more answers
What is the value of x ; 32x + 53 = 501
kirill [66]
32x + 53 = 501 
       -53       - 53 

<u>32x</u> = <u>448</u>
32       32

x = 14 
6 0
3 years ago
Read 2 more answers
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