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Lynna [10]
3 years ago
13

When the outliers are removed, how does the mean change? (2 points) dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1

on 81, 2 on 82, 1 on 83
Mathematics
1 answer:
777dan777 [17]3 years ago
8 0

Answer:

Answer: The mean increases by 3

Step-by-step explanation:

The original data set is 

{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}

The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.

The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77

If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80

So in summary so far

old mean = M = 77

new mean = N = 80

The difference in values is N-M = 80-77 = 3

So that's why the mean increases by 3

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If m∠ QOS=58, m∠ POR=61, and m∠ POQ=22 what is m∠ ROS
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19

Step-by-step explanation:

GIVEN P0R AND P0Q, YOU CAN FIND Q0R, WHICH IS 61-22=39. NOW YOU KNOW Q0S AND Q0R, YOU CAN FIND R0S, WHICH IS 58-39=19

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3 years ago
Pls help due asap! <br> Pls SHOW WORKINGS
sladkih [1.3K]

Answer:

m\angle 1=95^{\circ}

Step-by-step explanation:

If we drew an auxiliary line parallel to line p and line q that intersects the vertex of \angle 1, we would form three angles, one of them being

The largest of these angles corresponds with the angle marked as 148^{\circ}.

The angle on the bottom right corresponds with the angle next to the one marked as 63^{\circ}. Therefore, its measure is 180-63=117^{\circ}.

Since there are 360^{\circ} in a circle, we can now write the following equation:

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3 0
3 years ago
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andrey2020 [161]

Answer:

C. But be careful. It depends if you have been told what I was having trouble with.

Step-by-step explanation:

The question is a little unclear. If the actual interest is constant for all situations, the answer is C. The more times you compound, the more interest you will accumulate. Banks don't do it that way. It they compound every three months, then they cut the interest rate by a quarter.

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3 years ago
What is<br> is 1/4 + 9/10y -3/5y +7/8 written in simplest form?
Leviafan [203]

Answer:

Step-by-step explanation:

\frac{1}{4}+\frac{9}{10}y - \frac{3}{5}y+\frac{7}{8}\\\\=\frac{1}{4}+\frac{7}{8}+\frac{9}{10}y-\frac{3}{5}y\\\\

Combine like terms. 1/4 and 7/8 are like terms and LCD of 4 and 8 is 8

9/10y and -3/5y are like terms and LCD of 10 , 5 is 10

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