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kykrilka [37]
3 years ago
11

What is the probability of getting 60% or better on a true false exam with 50 questions

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
3 0

Answer:

41.1764...%

Step-by-step explanation:

60% on 50 questions is 30/50 correct since 30÷50=.6=60%

Between 30 and 50(inclusive) there are 21 numbers.(30,31,32...49,50).

There are 51 possibilities of scores,1-50/50 or 0/50

21/51=0.411764...

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How do I divide integers with different signs
jek_recluse [69]
Multiply or divide normally. Whenever the signs are different it’s always gonna be a negative.
7 0
3 years ago
What is the name for the threshold​ p-value that determines when the null hypothesis is​ rejected?.
Anna [14]

Alpha level. the minimum P-value at which we reject the null hypothesis

<h3>What is Null hypothesis ?</h3>

That two options are identical is the null hypothesis. According to the null hypothesis, the observed difference is solely the result of chance. The probability that the null hypothesis is correct can be determined via statistical testing.

<h3>What is alpha level?</h3>

The "significance level," often known as the alpha level, must be established before performing any statistical test. The likelihood of rejecting the null hypothesis when it is true is what is meant by the term "alpha level" in statistics. The likelihood of making a poor decision is what this phrase means.

To know more about Null hypothesis visit:

brainly.com/question/28098932

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7 0
2 years ago
Please simplify with a explanation!~
PilotLPTM [1.2K]

Answer:

-4y + 20

Step-by-step explanation:

4(-y+5)

What we need to do here is get rid of the parentheses, which can be achieved through multiplication.

This is another way of saying 4 times -y plus 4 times 5.

Let's break the the parentheses down into 2 separate formulas.

4(-y) and 4(5)

Now we can multiply these two together to get -4y and +20. When combined, we get -4y +20.

6 0
3 years ago
For the pair of functions, find the indicated sum, difference, product, or quotient.
ycow [4]
For the pair of functions, find the indicated sum, difference, product, or quotient.

f(x) = 6 - 7x, g(x) = -3x + 7
Find (f + g)(x).

7 0
3 years ago
Simplify 6(1/4+5/2)-2
zysi [14]
6(0.25+2.5)-2
6(2.75)-2
16.5-2
=14.5
7 0
3 years ago
Read 2 more answers
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