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Fed [463]
1 year ago
14

Which measure represents the standard deviation of the sample means and is used in place of the population standard deviation wh

en
the population parameters are unknown?
Mathematics
1 answer:
Ksivusya [100]1 year ago
4 0

The measure represents the standard deviation of the sample means and is used in place of the population standard deviation when the population parameters are unknown is; t-test.

<h3>Which measure is used when the population parameters are unknown?</h3>

A hypothesis test for a population mean when In the case that the population standard deviation, σ, is unknown, carrying out a hypothesis test for the population mean is done in similarly like the population standard deviation is known. A major distinctive property is that unlike the standard normal distribution, the t-test is invoked.

Read more on t-test;

brainly.com/question/6501190

#SPJ1

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jok3333 [9.3K]

Answer:

She can buy 62 smoothies

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
There are four slices of pepperoni pizza and three slices of veggie pizza sitting on the counter. what is the probability of ran
Otrada [13]

Answer:

The probability of randomly choosing a slice of veggie pizza is 3/7

Step-by-step explanation:

Probability is the measure of uncertainty of any event. It is the ratio of number of favorable outcomes to the total number of possible outcomes. That is,

Probability, P(A) = (Number of a Favourable outcome) / (Total number of possible outcomes).

From the question,

There are four slices of pepperoni pizza and three slices of veggie pizza, this means

Total number of favourable outcomes = 4 + 3 = 7

The favourable outcome is the veggie pizza, therefore

Number of favourable outcome = 3

Hence,

Probability P (A) = 3 ÷ 7

P(A) = 3/7

The probability of randomly choosing a slice of veggie pizza is 3/7

5 0
2 years ago
Okay, I'm going to be adding more but what is 4/10 x 3?
Marat540 [252]

Answer:

6/5 or 1 1/5

6/5 is an improper fraction, so I didnt know if youd need an improper one or a proper one. They both are the same thing though :)

Step-by-step explanation:

4/10*3

They both need to be a fraction, and any number over 1 = that number. So,

4/10*3/1

4*3=12

10*1=10

12/10

Then, you have to simplify the fraction.

6/5 (bc 2 goes into 12 6 times and 2 goes into 10 5 times)

or 1 2/10= 1 1/5

Hope this helps. Plz give brainliest. Also, plz sub to Kgirl633 on yt.

4 0
2 years ago
Read 2 more answers
I can not understand math
Fed [463]
I cant see the picture could u please post another one?
5 0
2 years ago
Which is a zero of the function f(x)=3x−12?
N76 [4]
<h3>Answer:  x = 4</h3>

==================================================

Explanation:

Replace f(x) with 0 and solve for x.

f(x) = 3x-12

0 = 3x-12

3x-12 = 0

3x = 12

x = 12/3

x = 4 is a zero, aka root, of the function

---------------

Check:

f(x) = 3x-12

f(4) = 3(4)-12

f(4) = 12-12

f(4) = 0

The answer is confirmed.

3 0
2 years ago
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