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
scoundrel [369]
3 years ago
15

For a binomial process, the probability of success is 40 percent and the number of trials is 5. Find the variance.

Mathematics
1 answer:
Natalka [10]3 years ago
4 0

Answer:

1.2

Step-by-step explanation:

The variance of a binomial distribution is:

σ² = n p (1 − p)

where n is the number of trials and p is the probability of success.

Given n = 5 and p = 0.40:

σ² = 5 (0.40) (1 − 0.40)

σ² = 1.2

You might be interested in
Find the measure of the exterior angle in the following triangle DUE SOON I’LL GIVE BRAINLIEST
anastassius [24]

Answer:

A. 125

Step-by-step explanation:

the sum of the remote angles is equal to the exterior angle

90+35=125

7 0
3 years ago
Read 2 more answers
PLAYSTOP6The volume of the solid iscubic feet. Use the formula V = Bh. All angles are 90°.9 ft.6 ft.ft.3 ft.2 ft.2ft.
ira [324]

Volumen of A Solid

Given a solid with a shape of a constant base B and height H, the volume is:

V = BH

The height of the solid is 1 1/4 ft. We need to calculate the area of the base.

The base consists of a larger rectangle from which has been taken a smaller rectangle.

The larger rectangle has dimensions of 9 ft by 6 ft, thus its area is:

A1 = 9 ft * 6 ft = 54 square ft

The smaller rectangle has dimensions of 2 1/2 ft by 4 ft.

The second dimension was calculated as the difference between 9 ft and 2 ft plus 3 ft. (9 ft - 3 ft - 2 ft = 4 ft).

The area of the smaller rectangle is:

A2 = 2 1/2 * 4

The mixed fraction 2 1/2 is converted to improper fraction:

2 1/2 = 2 + 1/2 = 5/2

Thus, the area is:

A2 = 5/2 * 4

A2 = 10 square feet

The area of the base is A1 - A2 = 54 square feet - 10 square feet = 44 square feet

B = 44 square feet.

Now for the volume:

V = 44 square feet * 1 1/4 feet

Again the mixed fraction is converted to a single fraction:

1 1/4 = 1 + 1/4 = 5/4

V = 44 square feet * 5/4 feet

V = 55 cubic feet

3 0
1 year ago
Assume that there are 2 trials.
vampirchik [111]
Answer: The p(success) = 0.6

Your question is a little unclear, but I believe you are asking about the probability that at least one of the trials in the experiment were successful.

If that is the case, you simply have to add the probability of 1 success with the probability of 2 successes.

That is 0.48 +  0.16 = 0.64

Rounding our answer to one decimal place gives us 0.6.
7 0
3 years ago
Read 2 more answers
(3x+2)(2x-7) answer?
mash [69]
Answer: 6x squared minus 17x minus 14
6 0
3 years ago
Simplify: |3 – 10| – (12 / 4 + 2)^2<br> 0 - 32<br> O – 18<br> O3<br> 0 - 6
MakcuM [25]

Answer:

-18

Step-by-step explanation:

Simplify: |3 – 10| – (12 / 4 + 2)^2

|3 - 10| - (\frac{12}{4}  + 2)^2\\\\|-7|-(\frac{12}{4}  + 2)^2 < == absolute\ numbers\ are\ always\ positive\\\\7-(3+2)^2 < ==add\ numbers\ in\ parenthesis\\\\7-5^2 < ==square\ the\ number\ (5)\\\\7-25 < ==add\ numbers\\\\-18 < ==final\ answer

Hope this helps!

6 0
2 years ago
Read 2 more answers
Other questions:
  • Suppose you throw a dart at a circular target of radius 10 inches. Assuming that you hit the target and that the coordinates of
    8·1 answer
  • How do you divide 25kg in a ratio of 2:3:5
    15·1 answer
  • Yesterday, Audrey drank the liquids shown in the
    15·2 answers
  • Eva played her favorite video games for 14 hours last week. Today, evas parents restricted her to 4 hours each week for the next
    9·1 answer
  • A candy bar box is in the shape of a triangular prism. The volume of the box is 3,240 cubic centimeters. A triangular prism is s
    13·2 answers
  • What is the solution for the equation?-5/2=3/4+n
    10·2 answers
  • Question is in picture
    13·1 answer
  • The goalie on the Iceblades hockey team saves (blocks) 73% of the opponent's shots. With 10 minutes to go, the Iceblades are ahe
    8·2 answers
  • Each of 7 students reported the number of movies they saw in the past year. Here is what they reported. 15,11,15,18,13,4,5. Find
    13·1 answer
  • Find the area of the composite figure. Don't forget to use the word "square" and then the given units in your answer.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!