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wariber [46]
3 years ago
14

A survey found that the median number of calories consumed per day in a certain country was 3,304 and the mean was 3,204.9 calor

ies. If a histogram were constructed for the data, would you expect it to be skewed to the right, to the left, or approximately symmetric
Mathematics
1 answer:
insens350 [35]3 years ago
5 0

Answer:

Skewed to the left

Step-by-step explanation:

Given

Median = 3304

Mean = 3204.9

Required

The type of distribution

From the given data, we have:

Median \ne Mean --- Mean and Median are not equal

and

Median > Mean --- Median is greater than mean

<em>When the median is greater than the mean; the histogram is expected to be left skewed</em>

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The National Cancer Institute estimates that 3.65% of women in their 60s get breast cancer. A mammogram can typically identify c
masha68 [24]

Answer:

39.17% probability that a woman in her 60s who has a positive test actually has breast cancer

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Positive test.

Event B: Having breast cancer.

3.65% of women in their 60s get breast cancer

This means that P(B) = 0.0365

A mammogram can typically identify correctly 85% of cancer cases

This means that P(A|B) = 0.85

Probability of a positive test.

85% of 3.65% and 100-95 = 5% of 100-3.65 = 96.35%. So

P(A) = 0.85*0.0365 + 0.05*0.9635 = 0.0792

What is the probability that a woman in her 60s who has a positive test actually has breast cancer?

P(B|A) = \frac{0.0365*0.85}{0.0792} = 0.3917

39.17% probability that a woman in her 60s who has a positive test actually has breast cancer

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3 years ago
17) Find the opposite.
madreJ [45]
The opposite of 41 is -41
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Irina has 6 tubs of yogurt she wants to scoop it all into bowls each bowl holds 1/4 tub of yogurt which division equation can be
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In order to find the answer, you can use-

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In order to get the answer, you multiply 6 by the denominator. 

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Then, you'd divide the solution of that part by the numerator.

24 divided by 1 equals 24.


Therefore, the final answer would be 24.


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Answer:

The answer for this question would be 21x (when simplified).

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Answer:

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