subject

Mathematics, 09.12.2019 19:31 146106

In a study of wait times at an amusement park, the most popular roller coaster has a mean wait time of 17.4 minutes with a standard deviation of 5.2 minutes. if 30 days are randomly selected, find the probability that the mean wait time is greater than 20 minutes.

a: 0.0031
b: 0.1023
c: 0.3207
d: 0.9987

ansver

Answers: 1

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 16:20

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Answers: 1

question

Mathematics, 21.06.2019 18:30

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Answers: 1

question

Mathematics, 21.06.2019 20:30

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

Answers: 2

question

Mathematics, 21.06.2019 21:00

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

Answers: 2

You know the right answer?

In a study of wait times at an amusement park, the most popular roller coaster has a mean wait time...

Questions

question

English, 21.01.2020 23:31

Part a: which two of the following best identify the central idea of this text? a. the u. s. government was justified to treat the indians har...

question

Mathematics, 21.01.2020 23:31

How many 15 year old boys live in ga? take an estimate. hurry we're doing a statistic sheet in math....

question

English, 21.01.2020 23:31

Asap plz brainliest 100 points what are elements of a body paragraph in a comparative essay? select four options. details e...

question

Physics, 21.01.2020 23:31

Aflat dance floor of dimensions l(x) = 17m by l(y) = 19 m has a mass m = 1400 kg. use the bottom left corner of the dance floor as the origin. three d...

question

Mathematics, 21.01.2020 23:31

what is a decimal that is equivalent to the fraction 3/10?...

question

English, 21.01.2020 23:31

Who received the chess set for christmas?...

question

Chemistry, 21.01.2020 23:31

Select the correct answer. a compound is used as a food additive. the compound has a molar mass of 176.124 grams/mole. a 692.5-gram sample under...

question

English, 21.01.2020 23:31

Determine the tasks that are the responsibility of a conference manager. arranging for accommodations making a budget creating a mar...

question

Mathematics, 21.01.2020 23:31

The rear window in a car is approximately a rectangle, 1.5 m wide and 0.70 m high. the inside rearview mirror is 0.60 m from the driver's eyes, and 2....

question

Arts, 21.01.2020 23:31

Which dance forms on the left contributed directly to the development of the dance forms on the right? each answer will be used only once....

question

Mathematics, 21.01.2020 23:31

Problem #7: suppose that the random variables x and y have the following joint probability density function. 0 < y < x. f(x, y)-ce f(x, y)=c...

question

Health, 21.01.2020 23:31

In order to properly stretch the hamstring during the active supine biceps femoris stretch, a client will need to contract which of the following duri...

question

Biology, 21.01.2020 23:31

The permian period ended and then rapid speciation occurred as new animal and plant forms evolved. the most likely explanation for this is...

question

Social Studies, 21.01.2020 23:31

Is a social movement dedicated to protecting the natural world from the undesirable changes brought about by human actions. 1. environmentalism...

question

Social Studies, 21.01.2020 23:31

His san francisco bandleader was not famous, but established the saxophone section as part of a jazz ensemble:...

question

Engineering, 21.01.2020 23:31

"write a statement that outputs variable numitems. end with a newline. program will be tested with different input values."...

question

Business, 21.01.2020 23:31

What does an owner own if the duration of his or her rights in an estate cannot be determined?...

question

Business, 21.01.2020 23:31

Aleader who encourages workers to take responsibility and is more concerned about quality than timeliness would likely be practicing which style of le...

question

Physics, 21.01.2020 23:31

The scalar product of vectors → a and → b is +48.0m2. vector → a has magnitude 9.00 m and dir...

question

Business, 21.01.2020 23:31

The market for public utilities, like gas and electricity, does not exhibit the two primary characteristics that define perfectly competitive markets....

More questions: Mathematics Another questions