Autumn used 0.675 of the battery life on her MP3 player. Her brother borrowed it to play a game and used 0.2 of the total battery life. If her MP3 player shows the battery life that remains as a percentage, what does it show after her brother is finished? N MP

Q: 78% of what is 91.1 tons?

A:

Q: There are 189 students enrolled to write Mathematical literacy. 105 of students are females.…

A: There are 189 students enrolled to write Mathematical literacy. 105 of students are females.…

Q: What equation could be used to find 140% of 60 ?

A: Given Data: The required percentage is: P%=140% The amount from which the required amount is…

Q: what number is 25% of 512?

A: 25% of 512 is 512×25100 = 512×14 =128

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A: Given :Population of squirrels in 2008= 76Incresed rate in 2 years = 29 %

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A: A pair of vertically opposite angles are always equal to each other. ... For example, if two lines…

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A: The number of jeans sold in the month of January is 1500.

Q: 8% of 400 is

A: Percentage: A number that can be expressed in a fraction of 100. It is denoted by %. Note: "of" in…

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A:

Q: 70% of what number is 252?

A: If we have number x  And we want to find y% of the x , that is z Then z = y100x

Q: in the past 10 years, the population of a city decreased by 2.3%. Find the new population of the…

A:

Q: What is 25% of 124

A: the x% of y is =x100×y

Q: What percent of 7y is 119?

A:

Q: A new car was purchased at a cost of $25,000. The car depreciates approximately 15% of its value…

A:

Q: 48% of the students who applied received a scholarship.   If 408 students received a scholarship,…

A: 48% of the students who applied received a scholarship. If 408 students received a scholarship,…

Q: As of this writing, the women’s record for throwing a disc (like a heavy Frisbee) was set by Valarie…

A: The value of the given percentage is given by dividing the percentage by 100 as the percentage…

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A: The problem is asking us to find a number such that 38% of that number is equal to 570. We can…

Q: 5 %of 69 is what percent of 100

A: Given: 5% of 69.   Find: 5% of 69 is what percent of 100.

Q: Indiana's population has increased by 9.5% since 2000, when it was about 6 million people. What is…

A: In 2000 population of Indiana's be 6 million people. That is there are about  6,000,000 people  at…

Q: The number 42.4 is what percent of 53?

A: let 42.4 is x% of 53

Q: 63 is90% of what number

A:

Q: A hockey player misses 60% of her shots. How many shots must she take before she gets 50 goals?

A:

Q: A 34% decrease resulted in 21 business in the downtown area. What was the number of businesses…

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Q: at percent of 200 is 8

A: n = 200 r = 80

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Q: 137 is what percent of 74?

A:

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.