Today, the waves are crashing onto the beach every 5.1 seconds. The times from when a person arrives at the shoreline until a crashing wave is observed follows a Uniform distribution from 0 to 5.1 seconds. Round to 4 decimal places where possible. Suppose that the person has already been standing at the shoreline for 1.2 seconds without a wave crashing in. Find the probability that it will take between 3.8 and 4.7 seconds for the wave to crash onto the shoreline.  46% of the time a person will wait at least how long before the wave crashes in?  Find the minimum for the upper quartile.

Q: Find t0.95t0.95 for TT distribution with 2020 degrees of freedom. t0.95=t0.95= (Round the answer to…

A: The given degrees of freedom is 20 and area is 0.95.

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.34%. A random sample of 31 of…

A:

Q: A baseball player has a batting average of 0.313. what is the players expected number of hits in her…

A: Solution: Given data p = 0.313 n =19 To find : Expected number of hits in her next 19 times at bat?…

Q: The average American gets a haircut every 39 days. Do college students get their hair cut less…

A: A hypothesis test is a statistical  method that uses sample data to evaluate a hypothesis  about a…

Q: udents? The data below shows the results of a survey of 20 college students asking hem how many days…

A: Given Sample size = 20 Sample sum = 812 Sample mean = 40.6

Q: A busy intersection in Arizona averages a traffic accident every 27 days. What is the probability…

A: Mean=27 days

Q: die (10-sided, with the numbers 1-10 on its faces) is rolled 450 times. Find the standard deviation…

A: Given die (10-sided, with the numbers 1-10 on its faces) is rolled 450 times

Q: Today, the waves are crashing onto the beach every 4.6 seconds. The times from when a person arrives…

A: The mean of this distribution is  a midpoint between the ends.  Mean = (4.6 + 0)/2 = 2.3 seconds

Q: that follow a Weibull distribution with m = 2 and a = 10 (with measurem of hours). e probability…

A: The random variable  represents the life lengthof resistors. The measurements in thousands of hours.…

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300⁢lbs and the…

A:

Q: The length of time it takes college students to find a parking spot in the library parking lot…

A:

Q: What is the probability of randomly selecting a Female or a New product? New product Old product…

A: We have given that the data into a cross tabulation form. Total number of persons = 73

Q: Trucks in a delivery fleet travel a mean of 130 miles per day with a standard deviation of 39 miles…

A: The data on per day mileage of a delivery truck is normally distributed. Population mean, Population…

Q: Today, the waves are crashing onto the beach every 5.4 seconds. The times from when a person arrives…

A: Solution: Let X be the times from when a person arrives at the shoreline until a crashing wave. From…

Q: If a probability or 2 place decimal like area is found to be 077 or - 1.09 0.4377, what is the z…

A:

Q: Last year, 58% of butterflies in NC were monarchs.  We hypothesize that the proportion changed this…

A: From the provided information,Last year, 58% of butterflies in NC were monarchs.

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs. and the…

A: Let "X" be the weight of steers in a herd.

Q: Based on a​ poll, among adults who regret getting​ tattoos, 13​% say that they were too young when…

A: The objective of this question is to find the probability of certain outcomes when nine adults who…

Q: Round every calculation to 2 decimal points unless the specific question asks for something…

A: Givensample size(n)=36Mean(μ)=99standard deviation(σ)=20

Q: A newly-hired school registrar in a Science High School would like to determine the overall…

A:

Q: The average American gets a haircut every 44 days. Is the average smaller for college students? The…

A: Introduction: Denote μ as the true average number of days that college students get a haircut.

Q: What is the probability of randomly selecting a Male or a Cat?

A: It is given that Total = 83 Number of males = 38 Number of cat = 32 Number of cat and males = 15

Q: Examine the image below and then answer all parts of the question under it. Enter your answers as…

A: a) There are 4 yellow objects in 10 objects.So, P(yellow)=410=0.4b) There are 3 hearts in the 10…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: Assume that adults have IQ scores that are nomally distributed with a mean of u= 100 and a standard…

A: It is given that the mean is 100 and standard deviation is 15.

Q: Find t0.69t0.69 for TT distribution with 8282 degrees of freedom. t0.69=t0.69= (Round the answer to…

A: We need to find t0.69 for T distribution with 82 degrees of freedom.

Continuous Probability Distributions

Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.

Normal Distribution

Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!