) Find the probability of 1 person getting above 78 points.  2) Find the probability of 12 people getting above 78 points.

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A:

Q: following is a grade distribution for a class of students.    Grade Frequency A 5 B 9 C 9…

A: Given : The following is a grade distribution for a class of students.    Grade Frequency…

Q: The chart below shows the grade distribution on a quiz in one of my classes. If there are 34…

A: Solution: The objective is to find the number of students who scored A grade

Q: a. What is the distribution of X? X N( 62 11 b. What is the distribution of ? N( c. If a single…

A: Since you have posted a question with multiple subparts, we will solve the first three complete…

Q: Flip a coin 10 times and record the observed number of heads and tails. For example, with 10 flips…

A: Given that, Flip a coin 10 times and record the observed number of heads and tails. For example,…

Q: E[X]=μX=E[X]=μX= dollars. (Round the answer to 1 decimal place.)  SD[X]=σX=SD[X]=σX= dollars. (Round…

A: Simply multiply each value of the discrete random variable by the probability associated with  that…

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 79…

A: (a)   Determine the distribution of X.   The distribution of X is determined below as follows:

Q: Solve In R programmning language: Suppose we know that the birth weight of babies is Normally…

A: Given  μ=3500, σ=500 P(X>3100)= ?

Q: Why do we have to define a distribution for a random variable? Choose the best statement below.…

A: From the given question,

Q: 15 25 35 45 55 P(x) 0.05 0.35 0.25 0.05

A: Given : x 15 25 35 45 55 P ( x) 0.05 0.35 0.25 0.05

Q: The probability of spinning an even number or multiple of 5 on the equal section spinner with…

A: (As per bartleby guidelines, for multiple questions asked, only the first question will be solved.…

Q: 4 While gathering eggs one day, Lisa has 15 eggs when Liana has 20 eggs at the moment when they…

A: Given that Lisa has 15 eggs Liana has 20 eggs 10% are rotten eggs i.e., p = probability of rotten…

Q: The average fruit fly will lay 415 eggs into rotting fruit. A biologist wants to see if the average…

A: From the data given: x¯=∑xn=513412=427.83s=14.8007 n=12   a) For this study, we should use t-test…

Q: Determine whether each distribution is a probability distribution. Explain your reasoning x 1…

A: The objective of the question is to determine whether the given distribution is a probability…

Q: ster, the following grades were recorded. Calculate the chi-square test statistic x used to…

A: Given : Grade A B C D F number 42 36 60 8 14

Q: 6. The probability that a chocolate biscuit is double wrapped is 0.01, and a box contains 150…

A: Discrete Random Variable: A discreate random variable is a variable whose values can be obtained by…

Q: asks women who work full time about the number of children they have. The table below e results.…

A: 4) The total number of families is 200+245+135+56+21+9+6+1=673.

Q: Decide if each of the following statements is True or False. Transforming an entire distribution of…

A: Solution: The given statement is “Transforming an entire distribution of scores into z-scores into…

Q: Write the binomial probability and the normal probability for the shaded region of the graph. Find…

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Q: in a survey conducted by a reputable marketing agency, 277 of 1000 adults 19 years of age or older…

A: To ensure that the results of the study are representative of all adults 19 years of age or older,…

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: According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary…

A: Given: 50% of primary care doctors think their parents receive unnecessary medical care. That is,…

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: es are randomly selected with replacement. *** After listing the possible samples and finding the…

A: Given A genetics experiment involves a population of fruit flies consisting of 1 male named Albert…

Q: Name: California State University, Fresno DS 123 Class Work #1 Problem I. Using the standard normal…

A: As per our guidelines we are suppose to answer only one questionI)1)Given the area to the right of…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.