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Leya [2.2K]
2 years ago
10

Consider the following set of sample data.

Mathematics
1 answer:
sergij07 [2.7K]2 years ago
3 0
Consider the following set of sample data.

21 29 32 38 38 45 50 64 72 100

For the given data, the mean is 48.9, the median is 41.5, and the mode is 38.

Suppose the observation 21 in the data is mistakenly recorded as 2 instead of 21. For the sample with this error, the mean is 47, the median is 41.5, and the mode is 38.

Suppose the value 21 in the original sample is inadvertently removed from the sample. For the sample with this value removed, the mean is 52, the median is 45, and the mode is 38.
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If f(x) = 3x² tlo, what is f(-7)?
tia_tia [17]

Answer:

Step-by-step explanation:

Be careful how you handle this.

f(-7) = 3(-7)^2

f(-7) = 3* 49     Notice the minus sign disappears. That's because there are 2 of them.

f(-7) = 147

4 0
2 years ago
A company collected $7,800 by selling shoes. The company had $6,084 left after paying the tax. What was the percentage of tax?
dezoksy [38]

Answer:

22%

Step-by-step explanation:

The percentage of tax can be found by calculating the percent change.

new - old / old

6084 - 7800 / 7800

= -0.22 or -22%

This means the price decreased by 22%, meaning you paid 22% in taxes.

please click heart button to give thanks :)

4 0
2 years ago
the probability of rolling a 6 on a biased dice is 1/5 1) complete the tree diagram. 2) Work out the probability of rolling two
pickupchik [31]

Answer:

Step-by-step explanation:

Not 6 on all rolls in the diagram = 4/5

6 on all rolls in the diagram is 1/5

To find the probablity of rolling two sixes, 1/5 x 1/5 = 4/100 = 0.04 = 4%

6 0
3 years ago
(2y-at)(y+2at) find the product
Fynjy0 [20]
(2y-at)(y+2at)


Answer: <span><span><span>−<span><span>2<span>a^2</span></span><span>t^2</span></span></span>+<span><span><span>3a</span>t</span>y</span></span>+<span>2<span>y^<span>2

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6 0
3 years ago
Read 2 more answers
I have 30 photos to post on my website. I'm planning to post these on two web pages, one marked "Friends" and the other marked "
Sergio039 [100]

Answer:a) 870

b) 435

Step-by-step explanation:

a)

number of photos to be posted =n = 30

number of web pages on which they would be posted is 2

Since the order in which the photos appear on the web pages matters,

Number of ways = 30 permutation 2

=870 ways

b)

Since the order in which the photos appear on the web pages does not matter,

Number of ways = 30 combination 2

= 435 ways

6 0
2 years ago
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