3 years ago

Division in colone 42735 divided by 5 42735:5

Mathematics

1 answer:

8090 [49]3 years ago

3 0

8547 itu jawabannya dek

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Find the probability that a Type A bulb lasts at least 300 hours and a Type B bulb lasts at least 400 hours.

barxatty [35]

Answer:

$P(X>3)P(X>4)=(1-F_1(3))(1-F_2(4))$

Step-by-step explanation:

We require more information by I will explain in principle:

If Type A has at least 300 hours and Type B at least 400 hours.

$(X>3)(Y>4)=P(X>3)P(X>4)$

You need to determine the Probability density function of X and Y and then subtract 1 from both

$P(X>3)P(X>4)=(1-F_1(3))(1-F_2(4))$

This will give you the probability of the expression.

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4 years ago

Joana was shopping for new pants. Store A has 3 pairs of pants for $ 94.50 and Store B has 4 pants for $126.00. Which store has

ankoles [38]

Answer:

I would say store B.

Step-by-step explanation:

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3 years ago

Lucas loses 12 points for every shot he misses in a basketball video game. If Lucas missed 8 shots, how many

MAXImum [283]

Answer:

Step-by-step explanation:

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3 years ago

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Sid earns $135 per day as a babysitter. He works 9 hours each day. How much does he earn in an hour?

Marina CMI [18]

Sid earns $15 an hour.
Hope this helps! :)

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3 years ago

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The Ransin Sports Company has noted that the size of individual customer orders is normally distributed with a mean of $112 and

Mashutka [201]

Answer: 2.71

Step-by-step explanation:

We know that the formula to calculate the standard error is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$ , where $\sigma$ is the standard deviation and 'n' is the sample size.

Given : Standard deviation : $\sigma=\$9$

Sample size : $n=11$

Then , the standard error of the mean is given by :-

$S.E.=\dfrac{9}{\sqrt{11}}=2.7136021012\approx2.71$

Hence, the standard error of the mean = 2.71

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3 years ago