1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
postnew [5]
3 years ago
10

In addition to the blood types A, B, AB , and O, a person’s blood may be classified as Rh positive or Rh negative. In the United

States, about 15% of the white population is Rh negative, while the percent is much lower in other racial groups. The director of a blood bank wants to estimate the probability that in a random group of 50 unrelated white donors, at least 8 will have Rh negative blood. If she generates random numbers to simulate this problem, how could she assign the numbers to the two blood types? A. Assign the numbers 0 through 8.5 to people with Rh positive blood and the numbers 8.6 through 9.9 to people with Rh negative blood. B. Assign the integers 00 through 84 to people with Rh negative blood and the integers 85 through 99 to people with Rh positive blood. C. Assign the integers 00 through 85 to people with Rh positive blood and integers 86 through 99 to people with Rh negative blood. D. Assign the integers 00 through 84 to people with Rh positive blood and the integers 85 through 99 to people with Rh negative blood.
Mathematics
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:

D. Assign the integers 00 through 84 to people with Rh positive blood and the integers 85 through 99 to people with Rh negative blood.

Step-by-step explanation:

If you want to simulate a percentage, you need to have 100 possible events. If you use 1-100, the range will be 1-85 for positive and 86-100 for negative. Looking at the option its all using 99 as the ceiling, so we use 0-99. Since we use 0, then you have to subtract 1 on the number range. There are 85% chance of Rh-positive, so the assigned number will be  

1 through 85

(1-1) through (85-1)

0 through 84

The range for Rh-negative will be:

86 through 100

86-1 through  100-1

85 through 99

Option B is wrong because it assigns 00 through 84 to people with Rh negative blood, not Rh-positive. The right answer will be option D.

You might be interested in
Which of the following steps were applied to ABCD to obtain A'B'C'D?
Llana [10]
Move ABCD 3 units to the left and 2 units up. (x-3, y+2)
4 0
3 years ago
A person draws a card from a hat. Each card is one color, with the following probabilities of being drawn: 1/25 for black, 1/5 f
Schach [20]

Step-by-step explanation:

P(black or yellow) = P(black) + P(yellow) − P(black and yellow)

P(black or yellow) = 1/25 + 1/5 − 0

P(black or yellow) = 6/25

3 0
3 years ago
-) Simplify: V625<br> 15<br> 20<br> 23<br> 25
tresset_1 [31]
The answer 25 hope it helps
8 0
3 years ago
Make a histogram, using a bin width of ten, to display the bowling scores for these 31 players: 87, 104, 79, 94, 117, 82, 72, 11
slavikrds [6]

Step-by-step explanation:

Using R, I used the following code to create a histogram:

bowling.scores <- c(87, 104, 79, 94, 117, 82, 72, 116, 105, 95, 88, 93, 109, 119, 75,  

                   103, 112, 97, 73, 85, 91, 86, 102, 99, 106, 84, 98, 83, 81, 96, 92)

data.frame(bowling.scores)

ggplot(data.frame(bowling.scores), aes(x=bowling.scores)) +  

 xlim(c(70, 120)) +

 scale_y_continuous(breaks = seq(0, 10, by=1), "Frequency") +

 geom_histogram(breaks=seq(70, 120, by=10), color="black", fill="grey60") +

 labs(title="Histogram of Bowling Scores", x="Bowling Scores", y="Frequency")

7 0
2 years ago
Safara uses these steps to partition segment AB in a ratio of 9:4. why Safara's method works?
cluponka [151]

Answer: D) the last one

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • A circle has a circumference of 120 meters. What is the measure of its radius? Round to the nearest tenth.
    9·2 answers
  • Will, Sue and Micah went to dinner. Will paid 1/4 of the bill. Micah and Sue paid in the ratio of 1:3. If Sue paid $15 more than
    15·1 answer
  • What measure of center should Mr. Malloy use for Amo and for Javier for the best possible grade?
    7·2 answers
  • The world record in the long jump is 29 feet and 4 1/2 inches. how many inches short of 10 yards is the record long jump?
    15·1 answer
  • 10. The product of two binomials is
    6·1 answer
  • 1a. 182 Freshmen were surveyed on whether they participate in a sport. 110 said yes, 40 boys said no, 90 girls were in the surve
    10·1 answer
  • Order the fraction to least to greatest 7\9 13\18 5\6 2\3
    6·1 answer
  • on the football team, two out of every seven players are seniors. if the team has 84 players, how many are not seniors.
    8·1 answer
  • A heavy rope, 50 ft long, weighs 0.6 lb/ft and hangs over the edge of a building 120 ft high. Approximate the required work by a
    8·1 answer
  • Please help!! I have been stuck on this question for a while
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!