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astra-53 [7]
2 years ago
11

Within the United States, approximately 11.25% of the population is left-handed. Of the males, 12.6% are left-handed, compared t

o only 9.9% of the females. Assume that the probability of selecting a male is the same as selecting a female. If a person is selected at random, to find the probability that the selected person is a right-handed female, one would compute:
Mathematics
1 answer:
GuDViN [60]2 years ago
3 0

Answer:

There is a 45.05% probability that the selected person is a right-handed female.

Step-by-step explanation:

We have these following probabilities

A 50% probability that a person is a male

A 50% probability that a person is a female.

A 12.6% probability that a male is left-handed.

A 9.9% probability that a female is left-handed.

If a person is selected at random, to find the probability that the selected person is a right-handed female, one would compute:

50% are female.

9.9% of the females are left-handed, so 100-9.9 = 90.1% of the females are right handed.

So

P = 0.5*0.901 = 0.4505

There is a 45.05% probability that the selected person is a right-handed female.

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A company mixes pecans, cashews, peanuts, and walnuts to make a batch of mixed nuts. About 15.4% of the mixed nuts in a batch ar
Elan Coil [88]

Answer:

500 lb

Step-by-step explanation:

You have to make a proportion:

\frac{part}{whole} = \frac{percent}{100}

77 lb is part of the whole weight ( which we don't know) so 77 will go on top

The problem tells us that 15.4% of the total weight is pecans so 15.4 will go over 100 (since % are out of 100)

\frac{77}{x} = \frac{15.4}{100}

Then you cross multiply giving you: 7700 = 15.4x

then you divide 15.4 to both sides to isolate x which will give you 500

4 0
2 years ago
Sanji throws an 8-sided solid with faces numbered 1 through 8. Which of the following statements is true? Select all that apply.
docker41 [41]

Answer:

P(multiple of 3) = 2/8 = 1/4 true

P(odd number) = 4/8 = 1/2 true

P(factor of 24) = 6/8 = 3/4 true

P(the number 9) = 0/8 = 0 true

Step-by-step explanation:

* Lets explain how to solve the problem

- There is an 8-sided solid with faces numbered 1 through 8

∴ We have the numbers from 1 to 8 (1 , 2, 3 , 4 , 5 , 6 , 7 , 8)

- Probability is the chance of an event occurring.

- Ex: the probability of flipping a coin and it being heads is 1/2

 because there is 1 way of getting a head and the total number of

 possible outcomes is 2 (a head or tail)

- We write P(heads) = 1/2

* Lets check the answers to find the true statement

# P(even number)

∵ There are 4 even numbers (2 , 4 , 6 , 8)

∵ There are 8 numbers

∴ P(even number) = 4/8 = 1/2 ≠ 1/8

# P(multiple of 3)

∵ There are 2 multiple of 3 (3 , 6)

∵ There are 8 numbers

∴ P(multiple of 3) = 2/8 = 1/4 true

# P(odd number)

∵ There are 4 odd numbers (1 , 3 , 5 , 7)

∵ There are 8 numbers

∴ P(odd number) = 4/8 = 1/2 true

# P(number less than 8)

∵ There are 7 numbers less than 8 (1 , 2 , 3 , 4 , 5 , 6 , 7)

∵ There are 8 numbers

∴ P(number less than 8) = 7/8 ≠ 1

# P(factor of 24)

∵ There are 4 factors of 24 (1 , 2 , 3 , 4 , 6 , 8)

∵ There are 8 numbers

∴ P(factor of 24) = 6/8 = 3/4 true

# P(the number 9)

∵ There is no 9

∵ There are 8 numbers

∴ P(the number 9) = 0/8 = 0 true

5 0
2 years ago
suppose marisol scored a 96% on an english test. There were 50 questions on the test. How many did marisol answer correctly?
Vera_Pavlovna [14]
Well if there were 50 questions it would be 2 points each so if he ended up with 96% he must have missed 2 questions
3 0
1 year ago
Read 2 more answers
the utilities bill for the millers' home in April was $132 fourty two percent of the bills was for gas and the rest was electric
s2008m [1.1K]

The bill was $132

42% was for gas.

Multiply the total bill by 42% ( 0.42) to find the amount spent on gas:

132 x 0.42 = $55.44 was spent on gas.

Now subtract that amount from the total to find how much was spent on electricity:

132 - 55.44 = $76.56 was spent on electricity.

5 0
2 years ago
Keenan currently does a total of 888 pushups each day. He plans to increase the number of pushups he does each day by 222 pushup
marishachu [46]

Answer:

8 + 2x = 30

Step-by-step explanation:

Given,

The initial number of push-ups he does in each day = 8,

And, the number of push-ups, he increases per day = 2,

Let x be the number of days after he will reach his target of 30 push-ups,

Since, the number of push-ups she will increase in x days = 2x,

Thus, the number of push-ups she will do after x days = 8 + 2x,

⇒ 8 + 2x = 30, which is the required equation.

4 0
1 year ago
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