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IRISSAK [1]
3 years ago
11

Suppose it costs ​$49 to roll a pair of dice. you get paid 7 dollars times the sum of the numbers that appear on the dice. what

is the expected payoff of the​ game? is it a fair​ game?
Mathematics
1 answer:
poizon [28]3 years ago
3 0
Yes because you automatically get 14 dollars and you could wide 84 dollars
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Mom is 60 years old and daughter is half mom's age. How old was daughter when mom was 4 times her age?
rewona [7]

Answer:

  10 years old

Step-by-step explanation:

The difference in ages is 60 -30 = 30 years. When mom was 4 times daughter's age, the difference in their ages was 3 times the daughter's age.

The age difference was 30 years at that time, so the daughter was 10 years old.

4 0
3 years ago
A researcher is wondering whether the smoking habits of young adults (18-25 years of age) in a certain city in the U.S. are diff
Usimov [2.4K]

Answer:

For this case we want to test if in a certain city in the U.S. are different from the proportion of the general population of young adults in the U.S 0.16 (alternative hypothesis) and the best system of hypothesis are:

Null hypothesis: p=0.16

Alternative hypothesis:p \neq 0.16

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if in a certain city in the U.S. are different from the proportion of the general population of young adults in the U.S 0.16 (alternative hypothesis) and the best system of hypothesis are:

Null hypothesis: p=0.16

Alternative hypothesis:p \neq 0.16

8 0
3 years ago
Need help on this question ASAP!!!!!!!!!!
loris [4]
I could help you in chat if you text me
4 0
2 years ago
1. Darius wants to simplify the expression below but does not have a calculator,
Elena L [17]

Step-by-step explanation:

it's answer (a) because he has to multipy the fractions because always fractions goes first and then he needs to add 5

7 0
3 years ago
Whats the nearest thousandth of 2.8151
Sever21 [200]

Answer:

To round off a number to the nearest 1000, check the hundredth digit of the number. Round off the number to the previous thousand if the hundredth digit is 0, 1, 2, 3 and 4. Round off the number to the next thousand if the thousandth digit is 5, 6, 7, 8 and 9. Examples: Consider the numbers 6567 and 6281.

5 0
3 years ago
Read 2 more answers
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