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vodka [1.7K]
4 years ago
8

HELP A person with type O blood can donate red blood cells to anybody because type O blood is the universal blood type. About 44

% of the US population has type O blood. University High held a blood drive where 50 students donated blood.
Part A: What is the probability that exactly 25 of the students had type O blood? (5 points)

Part B: What is the probability that at least 25 of the students had type O blood? (5 points)
Mathematics
1 answer:
wolverine [178]4 years ago
5 0

Answer:

A : 22%

B : 25%

Step-by-step explanation:

I am not certain about the B answer but the A I am confident in as you have to multiply the possible percentage by one another as they are co-dependent upon the outcome.

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Anwser each question (zoom in if needed)
Anvisha [2.4K]

Answer:

1 20     20

2 26     26    

Step-by-step explanation:

Distribution

6 0
3 years ago
Ani spent a total of $7.53 at a store. She bought some cereal for $3.67. She also bought 6 peaches.
Ratling [72]

Answer:

D

Step-by-step explanation:

It says she spent $7.53 at the store and she bought (SOME) cereal for $3.67

so we have to find how much the 6 peaches cost. To find it out we are going to have to subtract the cereal she bought from $3.67 and the money she wasted total so its going to be D.

8 0
3 years ago
After painting 3/8 of a fence he finds that he has painted 15 feet
siniylev [52]

Answer: I'm assuming you want to know how much surface area his fence is, so 40

Step-by-step explanation: First we can divide 15 by 3 to get 5, and then multiply 5 by 8. This gives us 40, which is our answer.

Hope this helps :)

6 0
3 years ago
Read 2 more answers
During a weekend the manager of a mall gave away gift cards to every 80th person who visited the mall. On saturday 12010 on sund
inysia [295]

Answer:

172.8 people got a gift card

Step-by-step explanation:

12,010 + 1,814 = 13,824 divided 80

= 172.8 people got a gift card

6 0
4 years ago
- Which of the following is the correct distance between the points (-5, 3) and (7,8)?
JulsSmile [24]

Answer:

13 units

Step-by-step explanation:

(x₁,y₁) = (-5 , 3)   & (x₂ , y₂) = (7 ,8)

Distance = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}} \\

              = \sqrt{(7-[-5])^{2}+(8-3)^{2}} \\\\= \sqrt{(7+5)^{2}+(8-3)^{2}} \\\\=  \sqrt{(12)^{2}+(5)^{2}}\\\\=\sqrt{144+25}\\\\=\sqrt{169}\\\\= 13

7 0
3 years ago
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