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Ilia_Sergeevich [38]
3 years ago
11

Question 5 please and thank you

Mathematics
1 answer:
stira [4]3 years ago
6 0
Need a more clear photo please can’t see nothing.
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In the distribution, the first quartile,median and mean are 30.8,48.5 and 42.0 respectively. If the co efficient skewness is -0.
finlep [7]

Answer:

The third quartile is 56.45

Step-by-step explanation:

The given parameters are;

The first quartile, Q₁ = 30.8

The median or second quartile, Q₂ = 48.5

The mean, \bar x = 42.0

Coefficient of skewness = -0.38

The Bowley's coefficient of skewness (SK) is given as follows;

SK = \dfrac{Q_3 + Q_1 - 2 \times Q_2}{Q_3 - Q_1}

Plugging in the values, we have;

-0.38 = \dfrac{Q_3 + 30.8 - 2 \times 48.5}{Q_3 - 30.8}

Which gives;

-0.38×(Q₃ - 30.8) = Q₃ + 30.8 - 2 × 48.5

11.704 - 0.38·Q₃ = Q₃ - 66.2

1.38·Q₃ = 11.704 + 66.2 =  77.904

Q₃ = 56.45

The third quartile = 56.45.

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3 years ago
A number chosen at random from 1 to 10 find the probability of selecting a 5 or greater
ZanzabumX [31]
The probablility is 1/2 or 0.50 % chance.
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Find the slope of two points: (-2,-1) and (4,3)
marta [7]

Answer: m = 2/3

\frac{-1-3}{-2-4} = \frac{-4}{-6} = \frac{2}{3}

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3 years ago
ABCD is a square. <br><br><br><br> What is the measure of angle BAC?
bezimeni [28]
Angle BAC is 45 degrees. The diagonal bisects angle BAD and since all angles in a square are 90 degrees, half of 90 is 45 degrees.
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(x+40)° what is x? plssss help meee thank you !!
SVEN [57.7K]

Answer:

I got 103˚ because I put (x+40)˚ into the calculator

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3 years ago
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