Under what conditions does P(B|A)=P(A|B)

This is finite math. She said it’s a word answer. 

Simple question

There are 100 cars in a motor match. If all the motors produce 100db noise level, the sound intensity level produced by one car at the same time is ___? A)1db;   B)15db; C) 80db; D)200db;

I need a step by step explanation on how to answer the question stated below as soon as possible, thank you!!!

Find the z score such that 83% of the distraction is contained within z standard devotions of the mean. 

11/07/17

If a player has a completion percentage of 88% then next game has a completion rate of 94% what would be the overall average?

A soccer player has played 5 games and totals 88% for pass completion, he then has a completion of 94%. What would the total percentage overall then become?

i need a answer for y+6=20

I need help on solving this one step equation.. 

11/05/17

same as below

Joe borrowed 8000 from the bank at a rate of 7% simple interest per year how much interest he paid in two years?

compound interest

$2250 is deposited in an account that pays 6% annual interest, compound quarterly. find the balance after ten years

10/27/17

At what rate percent per annum will a sum of rupees 6,750 amount to rupees 8,192 in 3 years, compounded annually?

This is a question related to compound interest

Probability and Stats

There are 49 even numbers from 1 to 99. The mean of 48 of these numbers is 49 and 5/12. Which even number was not included in the calculating of this mean?

In a certain truckload of apples 30% of the apples are rotten. if 12 are chosen at random, what is the probability that less than 3 of them are rotten?

 I know how to do conditionals somewhat but this confuses me because i dont know the amount of apples.

10/23/17

Dice probability problems

A dice is rolled 3 times. What is the probability of getting an even number twice?

with a sample space of: 5, 6, 12,13,15,18 ,22, 50. How many scores in the sample space have a z-score between 0 and 0.5?

Please help! Im not sure how to find z-scores. Finding z-scores

10/21/17

COMPOUND INTEREST

Hector and Yolanda want to establish a fund for their grandson's college education. What lump sum must they deposit at a 10.7% annual interest rate, compounded quarterly, in order to have $40,000... more

10/21/17

QUESTION BELOW

The principal represents an amount of money deposited in a savings account subject to compound interest at the given rate.Principal: $80,000 Rate: 2.5% Compounded: daily Time: 17 years   A.... more

10/20/17

making sure that your business has something special and distinct to offer is known as

A. differentation  B. diffusion C.distinction  D.distancing

Betty can mow a lawn...

Betty can mow a lawn in 40 minutes. Melissa can mow the same lawn in 60 minutes. How long does it take for both Betty and Melissa to mow the lawn if they are working together? Express your answer... more

10/19/17

compound interest

Compound Interest:  If P dollars are deposited in an account that pays 5% annual interest, then the amount of money in the account after 3 years is P(1+0.05)3. Find the amount when P=$1000.

10/18/17

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoop

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoops with the following weights in... more

10/18/17

The sum of a number and 9 Is -7

please help me solve this equation using one step 

10/18/17

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoop

An ice cream shop owner hires a clerk and informs him that the mean weight of scoops of ice cream should be 50 grams. The clerk weighs out seven ice cream scoops with the following weights in... more

10/18/17

Determine the number of atoms in 1.75 mol Al

Help me please :)

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