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AnnyKZ [126]
2 years ago
14

Several million lottery tickets are sold, and 21% of the tickets are held by men. Suppose you select a random sample of people a

nd let X represent the number of people in your sample for which are men with winning tickets. What type of random variable is X?
hypergeometric

Bernoulli

poisson

uniform
Mathematics
1 answer:
valina [46]2 years ago
5 0

Answer:

hypergeometric

Step-by-step explanation:

For each winning ticket, there are only two possible outcomes. Either it is held by a men, or it is not.

There is a set number of X, and as the number of winning tickets decrease, the probability of a winning ticket being held by a men can decrease or increase. This is a characteristic of the hypergeometric distribution.

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Two bookstores are having a sale on comic books. Main Street Books has a deal of 10 for $5.20 and Books Galore has a deal of 6 f
gizmo_the_mogwai [7]

Answer:

Books Galore has the lowest unit price

Step-by-step explanation:

if you divide main streets books, 10 ÷ $5.20 = $1.92

Books galore : 6 ÷ $3.60 = $ 1.66

5 0
2 years ago
1. Find the measures of two supplementary angles if the difference between the measures of the two angles is 35
Makovka662 [10]

Answer:

The sum they add up to is 180*.

8 0
2 years ago
Please help thanks very much
erik [133]
X/(x+5) = (x-2)/(x+1)
x(x+1) = (x -2) (x + 5)
x^2 + x = x^2 - 2x + 5x - 10
 x = 3x - 10
3x - x = 10
2x = 10
  x = 5

answer is A
5

4 0
2 years ago
I NEED HELP ASAP! In a magic square, the sum of the numbers in each row, column, and diagonal is the same. Write and solve equat
Trava [24]

Answer:

a=22,\\b=31,\\c=13

Step-by-step explanation:

When choosing equations to write, make sure you choose a pair that allow you to isolate a variable and solve for it.

Sample solution:

a+25+28=16+25+34,\\\\a+28=16+34,\\a+28=50,\\a=\boxed{22}

16+b+28=16+25+34,\\b+44=75,\\b=\boxed{31}

34+c+28=16+25+34,\\c+28=41,\\c=\boxed{13}

8 0
2 years ago
The radius of a tire is 1.2 feet. How far will you travel after ten complete rotations of the tire?
Montano1993 [528]
Well you have to start of by finding the circumference of the tire, which you can do with the equation 2πr. If the radius is 1.2 feet, you just plug this into the equation to get 2.4π, which we will round to 7.5. After 10 rotations, you should've traveled approximately 75 feet
7 0
2 years ago
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