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Musya8 [376]
3 years ago
7

What is the mean? 19, 16, 24, 12, 16, 21, 18

Mathematics
2 answers:
attashe74 [19]3 years ago
6 0
I'm pretty sure it's 12.
ella [17]3 years ago
3 0
Hello,

To find the mean of a set of a numbers, you find the sum of all the numbers, and divide the sum by the number of values.

In this case, it would be:

(19+16+24+12+16+21+18)/7 = 126/7 = 18

Hope this helps!
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Which one of the following would most likely have a negative linear correlation coefficient?
Alja [10]

Answer:

D

Step-by-step explanation:

RATE BRAINLIEST IF RIGHT

7 0
3 years ago
Read 2 more answers
5x² + 3y when x =-2 and y = 10​
Vera_Pavlovna [14]

Answer:

50

Step-by-step explanation:

When a number is next to a variable, such as 5x, this means you will multiply them(five times x). With x being -2, we will multiply -2 x -2 = 4. the exponent tells you how many times to multiply a number by itself. If the exponent was 5, we would multiply 2 by itself 5 times to get 10. Since we got 4 for our answer, we will multiply that by since it was an exponent and we multiply it. 4 x 5 = 20. Since we know that we multiply numbers next to variables, we will multiply 3y or 3(10). 3 x 10 = 30. Add this to 20 to get your answer. 20 + 30 = 50.

Hope this helps :)

6 0
3 years ago
A simple random sample of 36 men from a normally distributed population results in a standard deviation of 10.1 beats per minute
Katyanochek1 [597]

Answer:

Step-by-step explanation:

Given that:

sample size n = 36

standard deviation = 10.1

level of significance ∝ = 0.10

The null hypothesis and the alternative hypothesis can be computed as follows:

H_0 : \sigma = 10

H_1 : \sigma \neq 10

The test statistics can be computed as follows:

X^2 = \dfrac{(n -1)s^2 }{\sigma ^2}

X^2 = \dfrac{(36 -1)10.1^2 }{10^2}

X^2 = \dfrac{(35)102.01 }{100}

X^2 = \dfrac{3570.35 }{100}

X^2 =35.704

degree of freedom = n - 1 = 36 - 1 = 35

Since this test is two tailed .

The P -value can be determined by using the EXCEL FUNCTION ( = 2 × CHIDIST(35.7035, 35)

P - value = 2 × 0.435163515

P - value = 0.8703      ( to four decimal places)

Decision Rule : To reject the null hypothesis if  P - value is less than the 0.10

Conclusion: We fail to reject null hypothesis ( accept null hypothesis) since p-value is greater than 0.10 and we conclude that there is sufficient claim that the normal range of pulse rates of adults given as 60 to 100 beats per minute resulted to a standard deviation of 10 beats per minute.

3 0
4 years ago
(−6)^2<br> Need halp please
ziro4ka [17]
This is an EXPONENT. 

To do this all we need to do is multiply the base by itself how many times the power says.

(-6)² = (-6) × (-6) = 36

Recall that any negative number times another negative number is positive so that is why this would be positive.  

So, (-6)² = 36

Hope I helped ya!! 
4 0
4 years ago
Read 2 more answers
Which statement is true about this argument ?
MrRa [10]
D the argument is not valid because the conclusion does not follow from the premises
5 0
3 years ago
Read 2 more answers
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