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3 years ago

Find the arithmetic mean of 14 and 29.

Mathematics

2 answers:

Romashka [77]3 years ago

8 0

Answer:

Arithmetic mean =( 14+29 )/2

A.M = 21.5

Step-by-step explanation:

<h2>Hope it helps you</h2>

kotykmax [81]3 years ago

5 0

Answer:

Please mark Brainliest

Step-by-step explanation:

$\frac{14+29}{2}$

Is the mean

Before I calculate, I will explain WHY the fraction above appeared

What is the mean and how to find it?

This is how:

We add all the numbers in the dataset and then divide by the amount of numbers in the given dataset.

Something you might think:

<em>What are you talking about?!</em>

The fraction above shows everything.

There are 2 numbers in the dataset, so we divide by 2.

14+29=43/2=21.5

Hope this helps!

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Suppose that 45% of students in a college have a smart phone. If you select three students at random, what is the probability th

Sidana [21]

Answer:

$P(X=3)$

And we can use the probability mass function and we got:

$P(X=3)=(3C3)(0.45)^3 (1-0.45)^{3-3}=0.091$

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Step-by-step explanation:

Let X the random variable of interest "number of students with smartphone", on this case we now that:

$X \sim Binom(n=3, p=0452)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(X=3)$

And we can use the probability mass function and we got:

$P(X=3)=(3C3)(0.45)^3 (1-0.45)^{3-3}=0.091$

Then the probability that all three have a smart phone is 0.091

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3 years ago

What is the expression 6k + 50.5 equal to? How do you write this equation?

vivado [14]

Answer:

$\huge\green{ \mid{ \underline{ \overline{ \tt ♡ ANSWER ♡ }} \mid}}$

$6k + 50.5 = 0 \\ 6k = - 50.5 \\ k = \frac{ - 50.5}{6} \\ k = - 8.4166..$

$\huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}$

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3 years ago

From the information in the graph, what is the mode for the number of books the boys read?

Natalija [7]

Using the graph and the mode concept, it is found that the mode for the number of books the boys read is given by:

A. 3

The <em>mode </em>of a data-set is the <u>number that appears the most times</u> in it.

In this problem, the data-set is composed by the number of books read by boys each day, and is {7, 2, 3, 5, 3}.

The number 3 appears twice on the data-set, which is more times than the other numbers, hence, it is the mode of the data-set, and option A is correct.

You can learn more about the mode concept at brainly.com/question/24732674

4 0

2 years ago