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Minchanka [31]
2 years ago
7

Swapna gathered data on the number of page views for each of her blog posts. For her 40 latest posts, she found a sample mean of

358 with a population standard deviation of 54.3. What is the approximate 95% confidence interval for her page views? HINT: It's not D.
A. 344 and 372
B. 356 and 360
C. 341 and 375
D. 336 and 380

Mathematics
1 answer:
adelina 88 [10]2 years ago
3 0

Answer: for plato users

D. 341  and 375

Step-by-step explanation:

I just took the test

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kompoz [17]

The required number of red cards is 9 in the pile.

Given that,
The number of black cards in a pile is 4 times the number of red cards. There are 36 black cards in the pile.
To determine how many red cards are there.

<h3>What is arithmetic?</h3>

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

Let the number of the red cards be r, and the number of the black cards be b
Black cards in a pile are 4 times the number of red cards.
b = 4r
Now,
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b = 36
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r = 9

Thus, the required number of red cards is 9 in the pile.

Learn more about arithmetic here:

brainly.com/question/14753192

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1 year ago
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The point (3 , k) is a distance of 5 units from (0 , 1). Find the two possible values of k.
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D =√(x2-x1)^2 + (y2-y1)^2
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7 0
3 years ago
The population of a small town was 10,800 in 2003. Since then, the population has
nordsb [41]

Answer: 5940

Step-by-step explanation: I don't know if it's for sure right but here

First I knew 10,800 was 100% and I wanted to find 2.5%

So I did:

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Than you want to do

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After that you wanted to find out how much years apart so

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Then

18 x 270 = 4,860

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10,800 - 4,860 = 5940

8 0
2 years ago
Hey help me with ratios with double number lines uwur and you get 22 points
DENIUS [597]

Answer:

270 words in 3 minutes

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First find what the total on one minute is.

180/2 =90 words per minute.

So 180+90= 270 words in 3 minutes

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