3 years ago

The density curve represents the time, in hours, that

Mathematics

1 answer:

defon3 years ago

5 0

Answer:

In the picture below

Step-by-step explanation:

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Noah bought 15 baseball cards for $9.00.Assuming each baseball cards costs the same amount, how much will 12 baseball cards cost

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First, we find how much 1 baseballs card costs.

1 card = 0.60

12*0.6 = $7.20

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3 years ago

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What is mean of 8,3,3,7 and 4

Marina86 [1]

The mean is the average of the numbers. To obtain it, you add all the numbers together and divide by the number of numbers. So:

8+3+3+7+4= 25

25:5= 5

So the answer is: the mean is 5.

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3 years ago

A survey of 1,565 households estimated that 72% of the households in a given state owned a television. What is the population?

kvasek [131]

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Step-by-step explanation:

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3 years ago

What is 5\18 equal to

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3 years ago

Daily low temperatures in Columbus, OH in January 2014 were approximately normally distributed with a mean of 15.45 and a standa

Alona [7]

Answer: 12.10

Step-by-step explanation:

Given : Mean : $\mu = 15.45$

Standard deviation : $\sigma = 13.70$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 5 degrees

$z=\dfrac{5-15.45}{13.70}=-0.7627737226\approx-0.76$

For x= 10 degrees

$z=\dfrac{10-15.45}{13.70}=-0.397810218\approx-0.40$

The P-value : $P(-0.76$

$=0.3445783-0.2236273=0.120951\approx0.1210$

In percent , $0.1210\times100=12.10\%$

Hence, the percentage of days had a low temperature between 5 degrees and 10 degrees = 12.10%

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3 years ago