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3 years ago

Please help! What’s the mean of 13, 13, 10?

Mathematics

1 answer:

avanturin [10]3 years ago

8 0

Answer:

For mean it's the average. You add all three numbers (13, 13 , 10), then you divide it by three since their are three numbers. Average would be 12.

Hope this helps (:

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A bag contains 4 red marbles, 2 blue marbles, 1 purple marble, and 3 green marbles.If a single marble is pulled out of the bag,

faust18 [17]

Answer:

4 different outcomes based on color or 10 based on amount.

Step-by-step explanation:

I don't think it is specific enough for a definite answer.

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4 years ago

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Mrs. Thompson wants to buy centerpieces to use at a party. It will cost $49 to have the centerpieces delivered plus $0.89 per ce

dalvyx [7]

Answer:

49+0.89c

Step-by-step explanation:

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3 years ago

Find the value of m .

kondor19780726 [428]

Step-by-step explanation:

if the 2 matrices are inverse, then their product must be the identity matrix

1 0

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so,

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that means we have to solve only

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3 years ago

How many hours do Max and Sasha exercise per week?

Jlenok [28]

Max = 13 and Sasha = 7

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3 years ago

The Online Exam from Applied Statistics consists of 6 questions. Statistics show that there is a 75% chance that the student wil

Kryger [21]

Solution :

a). The probability that the student will $\text{correctly answer}$ the 1st question after the 4th attempt.

P (correct in the 4th attempt)

= $(1-0.75)^3 \times 0.75$

= 0.01171875

b). The probability that the student will $\text{correctly answer}$ 3 questions after 10 total attempts.

P( X = 3) for X = B in (n = 10, p = 0.75)

= $C(10,30) \times 0.75^3 \times 0.25^7$

= 0.0031

c). The mean and the standard deviation for the number of attempts up to when the students gets all the questions correct is :

There are = 6 success, p = 0.75.

Therefore, this is a case of a negative binomial distribution.

$E(X)=\frac{k}{p}$

$=\frac{6}{0.75}$

= 8

So, $\sigma = \frac{\sqrt{k(1-p)}}{p}$

$\sigma = \frac{\sqrt{6(1-0.75)}}{0.75}$

= 1.6330

6 0

3 years ago