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3 years ago

If the standard deviation of the data values in a sample is 17, what is the variance of the data values

Mathematics

2 answers:

Bess [88]3 years ago

7 0

Std dev = sqrt of variance

hence variance would be 17^2= 289

Llana [10]3 years ago

3 0

Answer:

289

Step-by-step explanation:

apexs

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in a test correct answer are given positive numbers and for incorrect negative numbers jack scored in successive rounds were-65,

eimsori [14]

Answer:

Jack scored a total of -40

Step-by-step explanation:

Arithmetic

Jack took a test where the correct answers are given as positive numbers and the incorrect answers are negative numbers.

The scores were

-65,-10,-15,20,30

The total score is the arithmetic sum of all scores, including their signs:

Total score: -65-10-15+20+30

Total score: -40

Jack scored a total of -40

4 0

3 years ago

CAN SOMEONE HELP???????????

guapka [62]

Answer:

g(-1) = -1

g(-0.25) = 0

g(2) = 2

Step-by-step explanation:

6 0

3 years ago

Factor completely 4u^2-28u+49

aleksandrvk [35]

Assignment: $\bold{Factor \ 4u^2-28u+49}$

<><><><><>

Answer: $\boxed{\bold{\left(2u-7\right)^2}}$

<><><><><>

Explanation: $\downarrow\downarrow\downarrow$

<><><><><>

[ Step One ] Rewrite $\bold{4u^2-28u+49}$

$\bold{\left(2u\right)^2-2\cdot \:2u\cdot \:7+7^2}$

[ Step Two ] Apply perfect square formula

Note: Perfect Square Formula: $\bold{\left(a-b\right)^2=a^2-2ab+b^2}$

$\bold{a=2u,\:b=7}$

$\bold{\left(2u-7\right)^2}$

<><><><><><><>

$\bold{\rightarrow Rhythm \ Bot \leftarrow}$

6 0

3 years ago

Select the correct answer.

san4es73 [151]

Answer:

Step-by-step explanation:

Is the answer

6 0

3 years ago

Find the unknown angle measures. А с 730 B mZA- m2-0 O

Ksju [112]

Answer:

angle a is 73 and angle c is 180-(73+73)=34

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3 years ago