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4 years ago

If the standard deviation of a set of data is 6, what is the value of the variance?

Mathematics

1 answer:

Serga [27]4 years ago

7 0

Answer:the value of the variance is 36

Step-by-step explanation:

The formula for determining variance is

Variance of a set of data = square of the standard deviation. If the standard deviation of a set of data is 6, then the value of the variance would be

Standard deviation^2 = 6^2 = 36

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What is the answer to this question?

Nitella [24]

Answer:

11x+2

Step-by-step explanation:

4 0

3 years ago

a carnival game consists of 3 dart throws at a target. The probability of scoring a hit on any one throw is 30%. Using the binom

Ghella [55]

Answer: Probability of scoring 2 hits = 0.63.

Step-by-step explanation:

Since we have given that

Number of dart throws at a target = 3

Probability of scoring a hit on any one throw = 30%

We will use "Binomial Distribution" i.e.

$P=^nC_rp^r(1-p)^{n-r}$

where,

n denotes number of dart throws at a target,

r denotes number of required throws

p denotes probability of success

(1-p) denotes probability of failure

So, Probability of success is given by

$\frac{30}{100}=\frac{3}{10}$

Probability of failure is given by

$1-\frac{30}{100}=\frac{70}{100}=\frac{7}{10}$

We will use "Binomial Distribution" i.e.

$P(X=2)=^3C_2(\frac{3}{10})^2\times (\frac{7}{10})\\\\P(X=2)=\frac{9}{100}\times \frac{7}{100}\\\\P(X=2)=\frac{63}{100}\\\\P(X=2)=0.63$

Hence, Probability of scoring 2 hits = 0.63.

3 0

3 years ago

Is 0.2 less than or greater than 0.4

chubhunter [2.5K]

Answer:

less than

Step-by-step explanation:

Think about it as if it was on the number line. What ever is further to the right is greater. This make 0.2 less that 0.4.

5 0

3 years ago

Read 2 more answers

Please help ASAP! It’s due in 20 min and I have complete it! I just need the statements and reasons! Thank you

azamat

Answer:

1) <11 and <14 are Same-Side Exterior Angles causing them to be supplementary.

2. <8 and <9 are Same-Side Interior Angles causing them to be supplementary.

Step-by-step explanation:

See answer above.

8 0

3 years ago

What is the point slope form of a line with slope -5 that contains the point (2,-1)?

Marina CMI [18]

Answer: A

Explanation:

(Y-Y1)=m(X-X1) is the base formula for point slope. The points to plug in (X1, Y1) are in this case (2,1). Plugging in those points gives you the equation of Y+1=m(X-2). Then it asks for the slope. In this equation, m = the slope. So plug in (-5) for the slope and you get Y+1=-5(X-2).

Hope this helps!

4 0

3 years ago