3 years ago

Explain how you can tell the frequency of a data value by looking at the dot plot

Mathematics

1 answer:

aleksandrvk [35]3 years ago

6 0

By the size of the cluster for the value.

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A typical tip at a restaurant is 18% of the total bill. If the bill is $60, what would the typical tip be?

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The typical tip would be $10.80

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3 years ago

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Tommy and his wife went to the store and bought groceries. Their subtotal was $143.50. If the sales tax was 8%, what was the tot

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4 years ago

Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation of 15. Using the empirical ru

Lady_Fox [76]

Answer:

Probability = 0.15%

Step-by-step explanation:

The provided information is:

Let X be the scores of the IQ scores that is normally distributed with mean $\mu = 103$ and standard deviation

That is $X \sim N(103,15)$

$103 - 58 = 45 = 3 \times 15$

So, 58 is 3 standard deviation left to the mean.

As 99.7% of probability lies within the three standard deviation.

Thus, above three standard deviation is:

$\frac{1-0.997}{2}=0.0015$

Thus, the required probability is 0.15%

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4 years ago

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slava [35]

Add up all the numbers that have xs on them and you should be good

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3 years ago

Miss Allen read for 3/4 of an hour less than the student who read the most. How long sis Miss Allen read for?

kolbaska11 [484]

Answer:

See Explanation

Step-by-step explanation:

Given

$Allen = \frac{3}{4}hr$ less than the most hour

Required

Hours read by Miss Allen

The question is incomplete, as the hours read by each student is not given.

To solve this, I will assume that the longest hours read by a student is x.

So, the expression for Miss Allen will be:

$Allen = x - \frac{3}{4}hr$

Assume that $x = 1hr$

The expression becomes

$Allen = 1hr - \frac{3}{4}hr$

Take LCM and solve

$Allen =\frac{4 - 3}{4}hr$

$Allen =\frac{1}{4}hr$

7 0

3 years ago