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3 years ago

Andrea recorded the points she scored in her last eight basketball games. What is the mean absolute deviation of the scores

Mathematics

1 answer:

grandymaker [24]3 years ago

6 0

The mean absolute deviation is a measure of variability in statistics. This number tells us how close the rest of the numbers are to the mean. The closer they are to the mean, the more reliable the data is.

The attached work shows how to find the MAD (mean absolute deviation).

Here are the steps:
1. Find the mean of the data. 2. Find the difference between the mean and the data values. 3. Find the average of these differences.

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Using the results from a survey of 1050 elibible voters, an approximate 98% confidence interval estimate for the proportion of v

Soloha48 [4]

Answer: p= 0.644

Step-by-step explanation:

We know that, the confidence interval for population proportion is given by :-

sample proportion(p) ± Margin of error(E)

Given confidence interval : (0.61,0.678)

i.e. p- E = 0.61 ... (i)

p+E = 0.678 ...(ii)

Adding (i) and (ii), we get

2p = 1.288

p= 0.644

From (ii),

E= 0.678-0.644

E= 34

Hence, the value of p = 0.644

3 0

3 years ago

A map has a scale of 1/2 inch to 4 miles. The shortest distance between two cities on the map measures 8 inches. If d represents

azamat

The answer would be C because for every 1 inch, would be 8 miles, so we then multiply the inches by 8 to get to 8 inches, so we then multiply the miles by 8 and we get 64 miles.

D = 64 mi.

5 0

3 years ago

Read 2 more answers

Solving need help in don't get it

Orlov [11]

$\sqrt{3x-5}-2=0$
add 2 to both sides
$\sqrt{3x-5}=2$
square both sides
3x-5=4
add 5 to both sides
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a nswer is B

4 0

3 years ago

Convert 2/8 into a decimal

Delicious77 [7]

0.25 is it in decimal form

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3 years ago

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Cyrus runs on a track at a constant speed of 200 meters per minute. Later, he makes a graph of his run to show his coach. He put

Andrej [43]

Answer:

We know that Cyrus runs at a constant speed, then we can model this with a linear relationship.

A linear relationship can be written as:

y = a*x + b

where a is the slope and b is the y-axis intercept.

For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:

a = (y2 - y1)/(x2 - x1).

In the graph, we can see two points, and those are:

(0, 0) and (1, 200)

Then the slope of this line will be:

a = (200 - 0)/(1 - 0) = 200

y = 200*x + b

And to find the value of b, we just can replace the values of one of the points in the equation (for example, i will use the point (0,0) ) and get:

0 = 200*0 + b

0 = b

Then the equation is:

y = 200*x

Now we can answer the questions:

What points does he plot to show how far he runs in 8 minutes?

Here we must replace x by 8 in the equation:

y = 200*8 = 1600

Then this point will be (8, 1600)

What points does he plot to show how far he runs in 12 minutes?

Here we must replace x by 12 in the equation:

y = 200*12 = 2400

Then this point will be (12, 2400)

6 0

3 years ago