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iragen [17]
3 years ago
7

A company surveyed 1000 people on their age and the number of jeans purchased annually. The results of the poll are shown in the

table. Jeans Purchased Annually 0 1 2 3 or More Total Under 12 0 65 68 87 220 12-18 21 74 126 69 290 19-25 31 56 119 74 280 over 25 49 55 95 11 210 Total 101 250 408 241 1000 A person is selected at random. Use the table to answer these questions. Round your answers to three decimal places. (a) What is the probability that the person, who is over 18, purchases 2 pairs of jeans annually? Incorrect: Your answer is incorrect. (b) What is the probability that a person who purchased less than 3 pairs of jeans each year will be in the age group 12-18? Incorrect: Your answer is incorrect.
Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer:

a) 0.437; b) 0.291

Step-by-step explanation:

For part a,

There are 280+210 = 490 people that are over 18 years old.  Out of these, 119+95 = 214 purchase 2 pairs of jeans annually.  This is

214/490 ≈ 0.437

For part b,

There are 87+69+74+11 = 241 people who purchase 3 or more pairs of jeans.  There were a total of 220+290+280+210 = 1000 people; this means there were 759 people tho purchased fewer than 3 pairs of jeans.  

Out of these, 21+74+126 = 221 were in the age group 12-18.  This gives us

221/759 ≈ 0.291

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loris [4]
This is 60 because if you were to 12 times 1 you would get 12 then multiply by 5 and you get 60. Now to check your answer do 12 divided by 12 which gives you 1 and do 60 divided by 12 gives u 5. Therefore the answer is 60cm hope this helps!
3 0
3 years ago
What is 63.562834 squared?
natita [175]
Just grab your calculator and multiply it by itself or use the 'square' function

Answer is  4040.233866
3 0
4 years ago
Read 2 more answers
he Mitchell family is renting a boat for the day. The boat rental has a flat fee of $100 plus $20 for each hour. They have to pa
valentinak56 [21]

250-100 = 150

150/20 = 7.5

7 hours


inequality: 100+20x <=250


8 0
4 years ago
Read 2 more answers
3. Use Structure Ana drew a plan for a
shtirl [24]

Answer:

(5.5, -3.5)

Step-by-step explanation:

As you can see in the figure, the fourth vertex is (5.5, -3.5)

If you observe carefully the vertex given, you will see that there are two vertex with same coordinates in x axis:

  • (-1.2, -3.5),
  • (-1.2, 4.4),

And one vertex has other coordinate in x axis, it is: (5.5, 4.4)

To form a rectangle, you need a fourth vertex that will have same coordinate in x than (5.5, 4.4) and same coordinate in y axis as (-1.2, -3.5),

Then the fourth vertex coordinate is (5.5, -3.5)

7 0
3 years ago
12. The probability a basketball player making a free-throw
Rasek [7]

Answer:

The odds against making a free throw are: 0.1905 or 0.16:0.84

Step-by-step explanation:

The odds can be categorized into two categories

  • Odds-against
  • Odds-in favour

The odds against is the ratio of probability of failure to probability of success.

Given

Probability of making a free throw = P = 0.84

Probability of not making a free throw = Q = 1-P = 1-0.84 = 0.16

The formula for odds-against is:

Odds-against = \frac{0.16}{0.84}\\= 0.19047..\\=0.1905

Hence,

The odds against making a free throw are: 0.1905 or 0.16:0.84

5 0
3 years ago
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