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
jonny [76]
3 years ago
7

In Europe, 53% of the flowers of the Rewardless Orchid, Dactylorhiza sambucina, are yellow, whereas the remaining flowers are pu

rple. For this problem, only use the normal approximation where it is appropriate. Use the binomial distribution where the normal approximation is inappropriate.
Required:
a. If we took a random sample of a single individual from this population, what is the probability that it would be purple?
b. If we took a random sample of five individuals, what is the probability that at least three are yellow?
c. If we took many samples of n=5 individuals, what is the expected standard deviation of the sampling distribution for the proportion of yellow flowers?
d. If we took a random sample of 263 individuals, what is the probability that no more than 150 are yellow?
Mathematics
1 answer:
stich3 [128]3 years ago
7 0

Answer:

a. The probability of taking out a purple flower is 0.47.

b. The probability that out of a sample of 5 flowers at least 3 flowers are yellow 0.56.

c. The standard deviation of the distribution for proportion of yellow flowers is 0.22.

d. The probability that out of the 263 samples, at most 150 of them are yellow is 0.90.

Step-by-step explanation:

You might be interested in
An electrician needs 3/4 roll of electrical wire to wire each room in a house . How many rooms can he wire with 6 rolls​
Makovka662 [10]

Answer:

8

Step-by-step explanation:

number of rooms=6÷3/4=6×4/3=8

7 0
3 years ago
Find the area of a rectangular garden that has a width of 4x−6 and a length of 2x+4. A. 8x^2−24
dmitriy555 [2]

Answer: option c is the correct answer

Step-by-step explanation:

The rectangular garden has equal lengths and equal widths.

The area of the rectangular garden is expressed as length of the rectangular field × width of the rectangular field.

From the information given, the length if the rectangular field is 2x+4 while the width of the rectangular field is 4x−6. The area of the rectangular field becomes

Area = (2x + 4)(4x - 6)

Area = 8x^2 - 12x + 16x - 24

= 8x^2 + 4x - 24

7 0
3 years ago
Read 2 more answers
Your instructor has 50 questions on a quiz and the are 2 points a peice. The maxium score is 100. and you miss 11 of these quest
Bess [88]

Answer:

78

Step-by-step explanation:

50 questions worth 2 a piece and you miss 11 questions so we are going to take 2(11) off of 50.

We are doing 100-2(11).

100-22=78.

Or if you miss 11 questions you get 39 right. So 39(2)=78.

6 0
3 years ago
Read 2 more answers
The table shows the time it took a group of students to complete a puzzle
Studentka2010 [4]

Answer:

a. 17  b. 16/24

Step-by-step explanation:

a. Find the midpoints of each class interval which is:

7.5 x 2 = 15

12.5 x 9 = 112.5

17.5 x 5 = 87.5

22.5 x 5 = 112.5

27.5 x 3 = 82.5

Add all of these up to give 410

Add up the total of the frequency column which is 24

410 / 24 = 17.0833.....

Rounded to 2 significant figures, the answer is 17

b. Add together all the people under 20 which totals to 16 and put this over the total of 24 to give the fraction 16/24

5 0
3 years ago
Read 2 more answers
What is 2000000 x 40000000
Effectus [21]
<h2>Answer:</h2><h2>8e+13 or 80,000,000,000,000</h2><h2 /><h2>Hope this helps!!</h2>

5 0
3 years ago
Other questions:
  • The scale on a map is 5 cm : 8 km. If the distance between two cities is 56 km, how far apart in cm are the two cities on the ma
    15·2 answers
  • Dylan has 36 marbles. He gave Xavier 4/9 of them. How many marbles did he give to Xavier?
    6·2 answers
  • 6x + 4y = 6 <br> 3x = -15 <br><br> x = ____ y = ____
    12·1 answer
  • Find the monomials <br> a. 100x^2=(?)^2<br> b. 49y^4x^6= (?)^2
    12·1 answer
  • Which reason completes the proof below?
    11·1 answer
  • Solve 8 = x2 + 8x + 25 by completing the square.
    8·2 answers
  • 3 equals 243. Explain how to use that fact to quickly evaluate 36
    7·1 answer
  • 100 POINTS AND BRAINLIEST!!
    8·2 answers
  • LAM 1 Mod 6 Question 2.
    15·1 answer
  • For the following sample, calculate ss. then, compute the sample variance and standard deviation. scores: 5, 2, 2, 7, 9
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!