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Gre4nikov [31]
3 years ago
5

What is the probability of not rolling a number larger than 4 with a fair die?

Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0
Find the probability of rolling a number bigger than 4 and subtract that by 100%; 

P(5)= 1/6 <-- 6 possible outcomes, 1, 2, 3, 4, 5 or 6
P(6)= 1/6 

You could have rolled a 5 or 6. When the word or is used, the probabilities are added together, when and is used, they are multiplied. 

(1/6)+(1/6)=2/6 

1-P(5)+P(6) 
=1-(2/6) 
=(6/6)-(2/6)
=4/6 

Therefore the probability of not rolling a number larger than 4 is 4/6 or 2/3.

Hope I helped :) 
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In the book Business Research Methods, Donald R. Cooper and C. William Emory (1995) discuss a manager who wishes to compare the
S_A_V [24]

Answer:

Null hypothesis is: U1 - U2 ≤ 0

Alternative hypothesis is U1 - U2 > 0

Step-by-step explanation:

The question involves a comparison of the two types of training given to the salespeople. The requirement is to set up the hypothesis that type A training leads to higher mean weakly sales compared to type B training.

Let U1 = mean sales by type A trainees

Let U2 = mean sales by type B trainees

Therefore, the null hypothesis (H0) is: U1 - U2 ≤ 0

This implies that type A training does not result in higher mean weekly sales than type B training.

The alternative hypothesis (H1) is: U1 - U2 > 0

This implies that type A training indeed results in higher mean weekly sales than type B training.

4 0
3 years ago
15 - 1/2 x 2 equals 14, but i dont know the steps
zloy xaker [14]
Remember PEMDAS - parentheses, exponents, multiply, divide, add, subtract

because multiply come before subtract, your first step would be 1/2 x 2 = 1

next, you subtract -> 15 - 1 = 14

14 is your answer
3 0
3 years ago
Triangle WYT is an isosceles if angle Y is equal to 156 then what are the other two angles? brainliest and five⭐ for the first w
Monica [59]

Answer: 12

Step-by-step explanation:

since it’s isosceles, the bottom two angles are equal so just subtract 156 from 180 and then divide that by 2.

3 0
1 year ago
Read 2 more answers
Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away initially and save $30 ever
Jlenok [28]
First option:
y=money saved
x=number of months

y=30x+500

Second option:

y=50x+200

We have this system of equations:

y=30x+500
y=50x+200

We can solve this system of equations by equalization method
30x+500=50x+200
30x-50x=200-500
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x=-300/-20
x=15

so;
y=30x+500
y=30(15)+500
y=450+500
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Answer; after 15 months, she would save the same amount using either option, the amount saved in either option will be $950. 
3 0
3 years ago
3/4 divided by n = 24
Sophie [7]
The answer is n= 1/32

4 0
3 years ago
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