01/12/23

The equation of a line is 3x + y = -5 (Solve for y)
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01/12/23

There’s this 3 worded problem that I need a solution on.
Part a: Assume that the height of your cylinder is 6 inches. Consider A as a function or r, so we can write that as A(r)=2π*r2+12π*r. What is the domain of A(r)? In other words, for which values of... more
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01/12/23

There are 3 hats with 3 balls each (blue, red and white), what is the probability of drawing one ball from each hat and getting at least 2 blue balls?
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12/09/22

Probability Coin Test

Two biased coins are tossed 144 times. 50 trials are both heads and 39 trials are both tails out of these 144 trials. Among the rest, 25 trials have head in the first coin while tail in the second... more
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11/25/22

related to probability
A public-interest group was planning to file a case in consumer court to challenge the of charging "surge pricing" by urban ride hailing companies in one of three cities. New Delhi, Mumbai, or... more
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11/19/22

Find the probability of the following event.
The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 3.5 per week. Find the probability of the following event.P(9 or more accidents occur in a week)=?
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11/18/22

For which numbers of r does a fair game result if s = 45 is given?
Let there be two urns. One urn contains r red and s black balls, the other urn s red and r black balls. One urn is selected at random and one ball is taken out. The removed ball is placed in the... more
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11/16/22

The probability function fX for a random variable X is given by the table below.
The probability function fX for a random variable X is given by the table below.x | -1 0 1 2 3fX(x) = P(X = x)| 0.2 0 u 0.2 0.1(a) Find u.(b) Find the expected value and variance of the... more
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11/15/22

48% of all pets sold at a pet store are dogs. One day, 9 people arrive at the store and purchase pets. (Note: One pet is purchased per person.)

a) what is the probability that exactly 3 of them are dogs? b) if the store only has 5 dogs, what is the probability that they have sufficient dogs for sale that day?
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11/15/22

If the student is found to have earned an A grade, find the probability that he or she is a senior, that is P(D|A).

A class of introductory probability consists of 20 sophomores, 30 juniors and 50 seniors. The final grades show that 4 sophomores, 6 juniors and 10 senior received an A grade. Randomly choose a... more
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10/08/22

What proportion of pregnancies last fewer than 262 days? P(X < 262 days)
The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days and a standard deviation of 16 days. A distribution of values is normal with a mean of 260 and a... more
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09/23/22

linear equation
1. It is estimated that if a price of $15 per unit is charged for a product, five units per period will be sold. If the price is lowered to $13, sales will be six units per period.The supply curve... more
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08/09/22

Three polynomials are factored below, but some coefficients and constants are missing. All of the missing values of a, b, c, and d are integers.
1. x^2 + 2x - 8 = (ax + b)(cx + d)2. 2x^3 + 2x^2 - 24x = 2x(ax + b)(cx + d)3. 6x^2 - 15x - 9 = 3(ax + b)(cx +d)Fill in the table with the missing values of a, b,... more
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08/09/22

algebra one i dont know what to type here lol
Quinn mailed four postcards that each cost $0.25, five letters that each cost $0.44, two large envelopes that each cost $0.80, and one small package for $5.10. Which cost on the list of mailing... more
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08/09/22

Compute the average of f(x) = e^x / 1 + e^2x over [0,1].(Be sure to set up the definite integral first.)
Compute the average of f(x) = ex1 + e2xover [0,1].(Be sure to set up the definite integral
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08/08/22

straws numbered from 0-10....
There are 11 different straws numbered from 0-10 (only whole numbers) a student can pick from a basket and the totalscore is assigned to that student. i.e. 1st pick: 5 2nd pick: 3 3rd pick:... more
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08/06/22

Estimation of probability

Let the random variable X be the number of months that a certain owner of an estate needs to pay a loan in the Bank if he/she has a contract with insurance company to help him/her to pay a loan.Say... more
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08/05/22

need answer to this asap
Given the function f(x)=1+7x^2 calculate the following values:f(a)=   f(a+h)=   f(a+h)−f(a)/h=
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07/22/22

Need help to solve this please
A soccer club wants to create an experienced team and need to organise an event to run a series of trials.The teams combination is to include experienced soccer players (d ) and training analysts... more
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