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mel-nik [20]
2 years ago
10

Based on a survey conducted by Greenfield Online, 25 - 34-year-olds spend the most each week on fast food. The average weekly am

ount of $44 was reported in a May 2009 USA Today Snapshot. Assuming that weekly fast food expenditures are normally distributed with a standard deviation of $14.50, what is a probability that a person in this age group will spend more than $60 on fast food in a week?
Mathematics
1 answer:
DIA [1.3K]2 years ago
7 0

The correct answer is P = 0.1357.

In solving for the probability (P) that the 34-year olds will spend more than $60 on fastfood, the mean and the standard deviation is to be taken into account. The mean (μ) being the $44 average weekly expenditure; while the standard deviation (σ) is $14.50. The formula goes this way P(X > 60) = P( X−μ > 60−44 ) = P ( X−μ/σ > 60−44/14.50). 

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Guys please help me
poizon [28]
<h3>Answer:   -4</h3>

==========================================================

Explanation:

We can pick any two rows from the table to get the (x,y) points needed to find the slope.

Let's say we pick the second and third rows

Subtract the y values: 14-6 = 8

Subtract the x values in the same order: 1-3 = -2

Divide the differences: 8/(-2) = -4

The slope is -4

--------------------------------------------------

You can use the slope formula

Let's say the points are (x1,y1) = (1,14) and (3,6)

m = (y2-y1)/(x2-x1)

m = (6-14)/(3-1)

m = -8/2

m = -4

It's the same basic idea as the previous section. You subtract the y values together (y2-y1) and the x values together (x2-x1) and divide the differences to get m. The order of subtraction doesn't matter as long as you stay consistent. If you do something like y2-y1 and x1-x2, then you'll get the wrong slope value.

3 0
3 years ago
Which expression shows the result of applying the distributive property to −2(13x−15)−2(13x−15) ?
defon
D is the answer good luck

3 0
3 years ago
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What was the baby horse's weight at an, age of 5 days A. 126 pounds B. 128 pounds C. 130 pounds D. 127 pounds
ANTONII [103]
<span>You would do 132-124 then divide the difference by two and add the dividend to 124 to get your answer </span>128 pounds 
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3 years ago
Enter an equation in slope-intercept form for the line below.<br> 4x +y = 2 <br> Y=?
Vladimir [108]

Answer:

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Step-by-step explanation:

move 4X to the other side and change the sign from plus to mines

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2 years ago
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andrey2020 [161]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
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