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disa [49]
3 years ago
6

What is the answer I got it wrong someone pls help

Mathematics
1 answer:
rosijanka [135]3 years ago
8 0

Answer:

Step-by-step explanation:

1st one

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I dont understand this equation.
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Where is the question and what is it?
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In the probability distribution to the​ right, the random variable X represents the number of marriages an individual aged 15 ye
kodGreya [7K]

The table of the probability is missing, so i have attached it.

Answer:

μ = 0.919

The interpretation of this is that;on the average, an individual aged 15 years or older has been involved in 0.919 marriages.

Step-by-step explanation:

The expected value which is also called mean value is denoted by the symbol μ. It is defined as the sum of the product of each possibility x with it's probability P(x) as the formula;

μ = Σx.P(x) = (0 × 0.272) + (1 × 0.575) + (2 × 0.121) + (3 × 0.027) + (4 × 0.004) + (5 × 0.001)

μ = 0.919

Thus, the interpretation of this is that;on the average, an individual aged 15 years or older has been involved in 0.919 marriages.

5 0
3 years ago
Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?
abruzzese [7]
The equation should be 7x^2 -x-9=0
4 0
3 years ago
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53 POINTS PLEASE HELP AND BRAINLYIST!!!
klemol [59]

Answer:

Dilations.

Step-by-step explanation:

A dilation does not preserve congruency since the post-image will be of a different size than the pre-image.

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The following data show the prices of different types of outfits at a store: $2, $2, $28, $26, $25, $27, $25, $27, $26, $28, $30
arlik [135]

2, 2, 25, 25, 26, 26, 27, 28, 28, 30

Minimum: 2

Maximum: 30

Median: 26

Lower quartile: 25

Upper quartile: 28

The box plot will have its left tail longer than the right tail because a few exceptionally low prices make the distribution skewed to the left.

<em>Just so you know, I didn't write this. Next time, do a google search for your answer. But in the mean time, here you go.</em>



6 0
3 years ago
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