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Hatshy [7]
2 years ago
15

Which of these variables is least likely to have a normal distribution?

Mathematics
2 answers:
Ainat [17]2 years ago
8 0

Answer:

Annual income for all 150 employees at a local high school

Step-by-step explanation:

The normal distribution is also called the Gaussian distribution. It is the most common type of distribution for statistical analysis. The normal distribution is based on a probability distribution. The data near the mean are more frequent than the data away from the mean. It is based on two parameters: the mean and the standard deviation.

As per options, option A which states ‘annual income for all 150 employees at a local high school’ the data is within the standard deviation.  

Viefleur [7K]2 years ago
4 0
It would be a, because some of the students could have really high income and some low, it’s very unpredictable, but all others will probably all be very close

Hope this helps!
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The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of .4 minutes
Kazeer [188]

The  probability that an interaction lasts longer than 4 minutes is 0.0062.

<h3>What is probability theory?</h3>

probability theory in mathematics  focus on the  analysis of random phenomena and this theory let us know that the outcome of a random event cannot be determined before it occurs.

z = (4 - 3)/.4

z = 1/.4

z = 2.5

0.0062

Hence The  probability that an interaction lasts longer than 4 minutes is 0.0062.

Read more on the probability here:

brainly.com/question/3248965

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3 0
1 year ago
What is the slope of the line on the graph?<br><br><br><br> Enter your answer in the box.
Snowcat [4.5K]

Answer:

-1/3

Step-by-step explanation:

If you divide rise over run you will do the equation -1 divided by 3 which is equal to -1/3

5 0
2 years ago
Look at the triangle.
Gekata [30.6K]

Answer:

Ok, Sir, The answer is D.

Step-by-step explanation:

From the list of possible answers, the sides are 5 and 12 and the hypotenuse is 13, so sin(x) is either 5/13 or 12/13 depending on which of the two legs is opposite to angle x.

7 0
3 years ago
The piggy bank contains 16 dimes, 8 nickels, and 12 quarters. This morning you removed 3 dimes and 5 nickels.Which expression co
Bond [772]
16•0.10= 1.60$
8•0.05= 0.40¢
12•0.25= 3.00$

1.60$+0.40¢+3.00$= 5.00$

3•0.10= 0.30¢
5•0.05= 0.25¢

0.30¢+0.25¢= 0.55¢

5.00$-0.55¢= 4.45$

4.45$ is left in the piggy bank.
3 0
3 years ago
Check all that apply. If csc =13/5 , then:
nirvana33 [79]

Answer:

The answer are the options B and C

sin(x)=\frac{5}{13}

tan(x)=\frac{5}{12}

Step-by-step explanation:

we know that

csc(x)=\frac{1}{sin(x)}

In this problem we have

csc(x)=\frac{13}{5}

substitute

\frac{13}{5}=\frac{1}{sin(x)}

solve for sin(x)

sin(x)=\frac{5}{13}

cos^{2}(x)+sin^{2}(x)=1

substitute the value of sin(x) and solve for cos(x)

cos^{2}(x)+(\frac{5}{13})^{2}=1

cos^{2}(x)=1-(\frac{5}{13})^{2}

cos^{2}(x)=(\frac{13^{2}-5^{2}}{13^{2}})

cos^{2}(x)=(\frac{144}{13^{2}})

cos^{2}(x)=(\frac{12^{2}}{13^{2}})

cos(x)=(\frac{12}{13})

The function tangent is equal to

tan(x)=\frac{sin(x)}{cos(x)}

substitute the values

tan(x)=\frac{(5/13)}{(12/13)}=5/12

8 0
3 years ago
Read 2 more answers
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