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Tanzania [10]
2 years ago
10

What is the variance of the following set of data? 5 ,55 , 505, 255, 5, 75 , 85, 65

Mathematics
2 answers:
makkiz [27]2 years ago
8 0

Answer:

27964.286

Step-by-step explanation:

i just used calculator soup

dezoksy [38]2 years ago
5 0

Answer:

28,912

Step-by-step explanation:

i also used calculator soup but gave the right answer

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What is the simplified value of the exponential expression 27^1/3?
Kamila [148]
27^1/3= a number you multiply by itself three times to get 27

Cubic root of 27 is 3

= 3
3 0
3 years ago
A scale on a blueprint drawing of a house shows that 10 centimeters represents 2 meters. What number of actual meters are repres
nata0808 [166]

Answer:

<u>3.6 meters</u> are represented by 18 centimeters on the blueprint.

Step-by-step explanation:

Given:

A scale on a blueprint drawing of a house shows that 10 centimeters represents 2 meters.

Now, to find the actual meters represented by 18 centimeters.

Let the actual meters represented by 18 centimeters be x.

As, given the scale on a blueprint drawing of a house shows that 10 centimeters represents 2 meters.

So, 10 centimeters equivalent to 2 meters.

Thus, 18 centimeters equivalent to x.

Now, to solve by using cross multiplication method:

\frac{10}{2}=\frac{18}{x}

<em>By cross multiplying we get:</em>

10x=36

<em>Dividing both sides by 10 we get:</em>

x=3.6\ meters.

Therefore, 3.6 meters are represented by 18 centimeters on the blueprint.

3 0
3 years ago
Joon is buying lotion for her mom's birthday. The lotion was originally priced at $18 but is now on sale for 20% off. How much w
vladimir1956 [14]

Answer:

Discount price= $14.4

Step-by-step explanation:

Giving the following information:

Original selling price= $18

Discount rate= 20% = 0.2

<u>To calculate the discount price, we need to use the following formula:</u>

Discount price= selling price * (1 - discount rate)

Discount price= 18 * (1 - 0.2)

Discount price= $14.4

7 0
3 years ago
Independent random samples are selected from two populations and are used to test the hypothesis H0:(μ1−μ2)=0H0:(μ1−μ2)=0 agains
lozanna [386]

Answer:

a. We do not have enough evidence to conclude that the two means differ.

b. There is no difference in the population means.

Step-by-step explanation:

a) Results of the test:

Having p - value to be very high, we have strong evidence of not rejecting H o and hence,

We do not have enough evidence to conclude that the two means differ.

b) For a one tailed test,

p - value = 0.115/2 = 0.0575

Interpretation: p - value is the probability of getting the difference as small as obtained in the sample, given that the null hypothesis is true i.e. there is no difference in the population means.

7 0
3 years ago
Adam bought a hat for $12 and three shirts. If each shirt was the
Readme [11.4K]

Answer: $14 each shirt

Step-by-step explanation:

54 - 12 = 42 ÷ 3 = 14

6 0
3 years ago
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