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lozanna [386]
2 years ago
12

HURRY!!!!! Hey guys help me with this PI question. Pi = 3.14Thank you!

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
6 0

Answer:19.625in

Step-by-step explanation:

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1 year ago
g Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rul
Galina-37 [17]

Answer:

a) 95% of people has an IQ score between 76 and 124​.

b) 0.3% of people has an IQ score less than 64 or greater than 136​.

c) 0.15% of people has an IQ score greater than 136

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 100

Standard deviation = 12

​(a) What percentage of people has an IQ score between 76 and 124​? ​

76 = 100 - 2*12

124 = 100 + 2*12

So within 2 standard deviations of the mean, and the percentage is 95%.

(b) What percentage of people has an IQ score less than 64 or greater than 136​?

64 = 100 - 3*12

136 = 100 + 3*12

99.7% of people has scores between 64 and 136. So 100 - 99.7 = 0.3% of people has an IQ score less than 64 or greater than 136​.

​(c) What percentage of people has an IQ score greater than 136​?

0.3% of people has an IQ score less than 64 or greater than 136​.

Since the normal distribution is symmetric, 0.3%/2 = 0.15% are below 64 are 0.15% are above 136.

5 0
2 years ago
WILL GIVEBRALIST TO FIRST ONE
torisob [31]
Rectangle explanation:I’m doing the same thing
3 0
3 years ago
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HELP ME PLEASE I WILL MARK YOU AS A BRAINLIEST!!!
Ymorist [56]
You add all the like terms together to get your final answer
5 0
3 years ago
A music store is receiving a shipment of Ipads. Each box comes with 12 white, 12 black and 24 grey
Mars2501 [29]

Answer:

<u>142 Grey, 83 white, 76 black</u>

Step-by-step explanation:

If you were to take 5 boxes and put 24,12,12 in each, then multiply each number by 5 you wpuld get 120 Grey, 60 white and 76 black. Then you would add what they already have 120 Grey + 22 Grey is 142 grey, 60 white + 23 white is 83 white, and 60 black + 16 black is 76 black.

3 0
3 years ago
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