Suppose you want to estimate the percentage of videos on You…

Suppose you want to estimate the percentage of videos on YouTube that are cat videos. It is impossible for you to watch all videos on YouTube so you use a random video picker to select 1000 videos for you. You find that 5% of these videos are cat videos. Based on the above, identify the following as an observation, a variable, a sample statistic, or a population parameter. a) The percentage of all videos on YouTube that are cat videos. [a] b) 5% [b] c) A video in your sample [c] d) Whether or not a video is a cat video [d]  

Kyle and Ryan take entrance exams at two different universit…

Kyle and Ryan take entrance exams at two different universities. Kyle scores a 474 on an exam with a mean of 375 and a standard deviation of 68, while Ryan scores a 41 on an exam with a mean of 21 and a standard deviation of 2. Which do you think is more likely to be accepted at the university of his choice? Round to the hundredths place. What is Kyle’s test score as a zscore? [a] What is Ryan’s test score as a zscore? [b] Who is more likely to be accepted at the university of his choice? Type either Kyle or Ryan in the box below.  [c]

A single card is drawn at random from a deck of 52 cards. De…

A single card is drawn at random from a deck of 52 cards. Determine the following probabilities. Enter your final answes as reduced fractions or whole numbers.Note: Aces are not considered Face or Number cards. What is the probability the card drawn is a Queen? [a] What is the probability the card drawn is a 3? [b] What is the probability that the card is a Queen and a 3? [c] What is the probability that the card is a Queen or a 3? [d] What is the probability the card drawn is a face card? [e] What is the probability the card drawn is a heart? [f] What is the probability that the card is a face card and a heart? [g] What is the probability that the card is a face card or a heart? [h]

The annual rainfall in a certain region is approximately nor…

The annual rainfall in a certain region is approximately normally distributed with mean 42.1 inches and standard deviation 5.5 inches. Round answers to the nearest tenth of a percent.a) What percentage of years will have an annual rainfall of less than 44 inches?  [a]% b) What percentage of years will have an annual rainfall of more than 40 inches? [b]% c) What percentage of years will have an annual rainfall of between 38 inches and 43 inches? [c]%

The average resting heart rate of a population is 86 beats p…

The average resting heart rate of a population is 86 beats per minute, with a standard deviation of 10.5 bpm. Find the z-scores that correspond to each of the following heart rates. Round your answers to the nearest hundredth, if necessary. 103 bpm z= [a] 74 bpm z= [b]