5,341 Answered Questions for the topic probability

Probability Math English Statistics

03/09/22

I don’t understand how to do this question.

At a particular University, students’ grades in introductory statistic classes are generally unimodal and skewed to the left with a mean of 63 and a standard deviation of 18. (Round to 2 decimal... more
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Probability Math

03/09/22

What is the probability that a seven digit phone number ends “309” and has distinct digits?
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Probability Math

03/09/22

What is the probability that all digits are odd in a seven digit phone number?
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Probability Math Statistics Maths

03/09/22

A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?
A population consist of five (5) measurements 2,3,5,6 and 7. What is the variance of the sampling distribution?a.0.89b.1.29c.3.90d.2.20
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Probability Math

03/08/22

Suppose a 7-digit phone number is chosen at random.
(a) What is the probability that the digits are distinct (i.e. that no digits repeat)? (b) What is the probability that all digits are odd? (c) What is the probability that it ends “309” and has... more
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Probability Math

03/08/22

Suppose a 7-digit phone number is chosen at random. What is the probability that the digits are distinct (i.e. that no digits repeat)?
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Probability Math Statistics Maths

03/08/22

The weights of 1000 children have an average of 45 kilograms and a standard deviation of 5 kilograms.
Situation: You volunteered to be part of the medical mission in your barangay and in-charge to get weight of the children. The weights of 1000 children have an average of 45 kilograms and a... more
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Probability Statistics

03/07/22

Calculate the probability of not rolling a 2. (Express your answer as a decimal rounded to the nearest ten-thousandth.)
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Probability Finance

03/07/22

Dr. Meara could address this situation
A second way that Dr. Meara could address this situation is to accept a new contract from a local health insurer. For the sake of simplicity, assume that a private health care plan that currently... more
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Probability Finance

03/07/22

What would be the financial impact of altering staffing to achieve 98% capacity?

One way that Dr. Meara can reduce the costs of unused capacity is to adjust staffing so that the department achieves 98% capacity utilization by type of personnel position. What would be the... more
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Probability Math Statistics Maths

03/07/22

You plan to open a new pizza restaurant and found out the data for a similar restaurant which is presented below.
You plan to open a new pizza restaurant and found out the data for a similar restaurant which is presented below.amount - percentage$40000 - 10% loss$0 - 35%$40000 - 45% profit$200000 - 10%... more
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Probability Math Statistics Maths

03/07/22

The weights of 1000 children have an average of 45 kilograms and a standard deviation of 5 kilograms.
Situation: You volunteered to be part of the medical mission in your barangay and in-charge to get weight of the children. The weights of 1000 children have an average of 45 kilograms and a... more
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03/06/22

statistics and probability

After Bank A announced the creation of a new cryptocurrency, EBOCOIN, several analysts began to develop models that aim to explain the evolution of the price of this cryptocurrency over time.... more
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Probability Math Statistics Maths

03/06/22

The weights of 1000 children have an average of 45 kilograms and a standard deviation of 5 kilograms.
Situation: You volunteered to be part of the medical mission in your barangay and in-charge to get weight of the children. The weights of 1000 children have an average of 45 kilograms and a... more
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Expert Answers •1
Probability Math Statistics Maths

03/06/22

The weights of 1000 children have an average of 45 kilograms and a standard deviation of 5 kilograms.
Situation: You volunteered to be part of the medical mission in your barangay and in-charge to get weight of the children. The weights of 1000 children have an average of 45 kilograms and a... more
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Expert Answers •1
Probability

03/05/22

question about probability
of the 58 people who answered yes to aquetion 15 were male of the 63 people who answerd no to the quetion 9 were male if one person is selected at random from the group what is the probability... more
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Probability Statistics

03/04/22

The middle value under the normal curve is always 0
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03/04/22

I'm stuck on the latter part of this equation, for some reason I got a 12 for the .4 proportion when I attempted to standardize it. This does not correlate with my z distribution chart. Thanks!
Based on historical data, your manager believes that 25% of the company's orders come from first-time customers. A random sample of 224 orders will be used to estimate the proportion of... more
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Probability Statistics

03/04/22

The amount of time to complete a physical activity in a PE class is approximately normally normally distributed with a mean of 38.2 seconds and a standard deviation of 6.7 seconds.
a) What is the probability that a randomly chosen student completes the activity in less than 31.9 seconds? b) What is the probability that a randomly chosen student completes the activity in more... more
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Probability Statistics

03/03/22

Solving problems involving permutations

A Grade 12 student is taking Biology, English, Math and Physics in her first term. If a student timetable has five courses, how many ways can she schedule her course?
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Probability Math Algebra Sequences

03/02/22

Counting Principle
When ordering the Kids' Lunch at Burger Universe, the customer must choose a size, whether or not to have cheese, a type of bun, a side order, and a type of fruit drink.Here are the possibilities... more
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Probability Math Algebra Sequence

03/02/22

Counting principle
Hale Middle School is going to select a committee. The committee will have a faculty member, a male student, a female student, a parent, and a school board member.Here are the positions and the... more
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Probability

02/28/22

Probabilty question.
The proportion of eligible voters in the next corporation election (in tumkur) who will vote for the incumbent is assumed to be 55%. What is the probability that in a random sample of 500 voters... more
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Probability Statistics

02/28/22

A lottery offers five Php 1000, two Php 5,000, and one Php 10,000. One Thousand tickets are sold at Php 30 each. Find the expectation if a person buys one ticket.
Mean and Variance of the given myu=E[ x times P(x)]
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Probability Statistics

02/28/22

A lottery offers five Php 1000, two Php 5,000, and one Php 10,000. One Thousand tickets are sold at Php 30 each. Find the expectation if a person buys one ticket.
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