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
Veronika [31]
3 years ago
7

We perform an experiment that consists of independent trials where the probability of success is p = 0.25. (a) Let X be the numb

er of successes in 800 trials. Using the appropriate approximation, calculate P{X > 220}.
Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0

Answer:

0.0482

Step-by-step explanation:

Given the following :

Probability of success : p(success) = 0.25

Number of trials = 800

X = number of successes

Calculate P(X > 220)

The problem above can be solved using the binomial probability formula:

P(X > 220) = P(X = 221) + P(X =222)... + P(X =800)

To save computation time, we coild use the online binomial probability calculator :

P(X > 220) = 0.0482

The binomcdf function of a graphing calcukatur can also be used :

1 - binomcdf(800, 0.25, 220)

1 - (0.95177363855) = 0.04822

You might be interested in
Two dice are rolled, find the probability that the sum is less than 13
Alex777 [14]
100% of the rolls would be less than 13. The highest number on one die is 6, so even if you roll 2 dice the sum of both dice will always be lower than 13.
It's a 1:1 probablility.
7 0
3 years ago
Four-fifths of a spinach casserole is leftover after Sam has lunch. Jackie and Alicia each take 1/2 of the leftover casserole. J
Delvig [45]

Answer:legit?

Step-by-step explanation:legit?

3 0
3 years ago
How much would 3 yd of lumber cost if each foot costs $3.75
Shtirlitz [24]

Answer:

$33.75

Step-by-step explanation:

3 ft are in a yd so 9 ft are in 3 yd. Then you multiply 9 by 3.75 which brings you to the answer $33.75.

5 0
3 years ago
Write the limit definition of a function of x
ollegr [7]

Answer:

 the limit of a function is a fundamental concept in calculus and analysis concerning the behavior of that function near a particular input.

Step-by-step explanation:

7 0
3 years ago
7) Solve the following system of equations below algebraically using substitution.
Pani-rosa [81]

Answer:

x = 3.25

y =4.75

Step-by-step explanation:

In order to Solve the following system of equations below algebraically using substitution method we say that;

let;

8x - 4y = 7 ..................... equation 1

x + y = 8.......................... equation 2

from equation2

x + y = 8.......................... equation 2

x = 8 - y.............................. equation 3

substitute for x in equation 1

8x - 4y = 7 ..................... equation 1

8(8-y) - 4y = 7

64-8y-4y=7

64-12y=7

collect the like terms

64-7 = 12y

57= 12y

divide both sides by the coefficient of y which is 12

57/12 = 12y/12

4.75 = y

y =4.75

put y = 4.75 in equation 3

x = 8 - y.............................. equation 3

x = 8 -4.75

x = 3.25

to check if your answer is correct, put the value of x and y in either equation 1 or 2

from equation 2

x + y = 8.......................... equation 2

3.25 + 4.75 =8

8=8.................... proved

8 0
3 years ago
Other questions:
  • I would like to know what 1320 divided by 66 is
    10·1 answer
  • What is the median for the data set?
    12·2 answers
  • The registrar's office at ACC predicts that 30% of the 6,950 spaces open in various math classes will be filled
    13·1 answer
  • How many boxes are shipped
    12·2 answers
  • The shape on the left is transformed to the shape on the right.
    11·2 answers
  • Evaluate each expression​
    7·1 answer
  • Hats and mittens are on sale at the store! One woman was able to buy 5 hats and 4 pairs of mittens for $30.
    7·1 answer
  • City A 4%
    7·1 answer
  • Find the angle vector of 7j +10 k,i +6j+6k,-4i+9j+6k​
    8·1 answer
  • Sometimes subtraction involves borrowing. <br><br> true or false
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!