3 years ago

PLEASE HELP ASAP PLZ EXPLAIN

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

4 0

Answer:

the left graph is wrong because the years don't follow a pattern. usually they're suppose to go up by the same number each time. The left graph represent data better because it goes up by 10 years each time.

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Please can i have some help, just on this question, thank you so much!

Andrew [12]

Answer:

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Step-by-step explanation:

1/2 of 16 is 6, so 6 would be 1/4 of what? 6 x 4 = 24. 6 is 1/4 of 24. The other one is the same. 1/3 of 90 is 30, and 30 is 2/3 of 45.

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Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

$\bar x=\displaystyle\frac15\sum_{i=1}^5x_i=\dfrac{21+10+6+7+11}5=11$

The variance of the sample is then computed with the formula

$s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5$

The standard deviation is the square root of the variance, so

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3 years ago

PLZ HELP ILL MARK YOU BRAINLIEST

NARA [144]

Answer:

D. 89°

Step-by-step explanation:

On the line segment "C," 89 degrees is shown in one corner. x is directly across from it, therefore being the same degrees

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3 years ago