which of the following random variables is discrete? A.Time until a projectile returns to earth. B.The number of times that a transistor in computer memory changes state in one operation. C.The volume of gasoline that is lost to evaporation during the filling of a gas tank. D.The outside diameter of a machined shaft.

Q: Classify each of the following random variables as discrete or continuous. a) Amount of calories in…

A: Discrete random variable: A variable taking only particular values is called as a discrete random…

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A: A Discrete random variable: It can be defined as a variable that has a finite or countable number of…

Q: Given that z is a standard normal random variable, find z for each situation. a. The area to the…

A: Refer Standard normal table/Z-table, Lookup for z-score corresponding to area 0.2119 to the left of…

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A:

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Q: Classify the following random variable according to whether it is discrete or continuous. The cost…

A: Continuous variable This is the value which are have unlimited number between the two number For…

Q: Which of the following is a continuous random variable? O Speed of an airplane O The number of…

A: A continuous random variable is which can take values between a permitted range. Example: Height,…

Q: Find the following probability for the standard normal random variable z. a. ​P(−1.96≤z<−0.22​)…

A: Given     a. ​P(−1.96≤z&lt;−0.22) b. ​P(z≥​0)  c. ​P(−2.35≤z≤1.45​)…

Q: Given that z is a standard normal random variable, compute the following probabilities.   ?(? ≤…

A:

Q: Given that Z is a standard normal random variable, what is the value of Z if the area to the right…

A: Z - score  :  Z is a standard normal variate follows normal distribution with mean 0 and standard…

Q: Identify the following as a discrete random variable, continuous random variable, or not a random…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Let Z be a standard normal random variable and calculate P(-1.23 sZs0). Excel Workshect-1.xlsx…

A:

Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: It is given that P(1.19 ≤ Z ≤ c) = 0.0811 Where Z follows N(0,1)

Q: 1. Classify the following random variables as discrete or continuous: a. the number of automobile…

A: Let, random variable: a quantity whose value is random and to which a probability distribution is…

Q: Let Z be a standard normal random variable. Use the calculator provided to determine the value of c.…

A: We have find z- score...

Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: Given that  Z be a standard normal random variable . P(-0.58≤Z≤c) = 0.6993 The z normal graph is as…

Q: Find the expected value for the random variable. 9. 12 15 18 21 P(z) 0.11 0.25 0.39 0.16 0.09 E(z) =…

A: Formula : E(z) =  Σz * p(z)

Q: The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random…

A:

Q: Determine if each of the following situations illustrates a continuous random variable or not. a.…

A: a) The weight can be any number. If we use a good weight machine then we can get the exact value of…

Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A:

Q: Given that z is a standard normal random variable, find z for each situation.a. The area to the left…

A: Solution: a. From the given information, By using excel By comparing (1) and (2) z=1.96.

Q: 1. Which of the following random variables is discrete? a. the length of time a battery lasts b. the…

A: Discrete variable:   It is nothing but it takes or considers only the countable number of values or…

Q: z is a standard normal random variable. The P2> 2.41) equals 0.0778 0.1075 O 0.9222 O 0.0080

A: The P(Z ≥ 2.41) equals is obtained below: From the given information the value of z-score is 2.41.…

Q: Let z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: For P(–c &lt;z &lt;c) =0.9488. The area between the two boundaries is 0.9488. In the remaining area…

Q: Let z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: Given P(-1.13&lt;=Z&lt;=c) = 0.8569 P(z&lt;=c)-P(z&lt;=-1.13)= 0.8569p(z&lt;=c)-0.1292 = 0.8569…

Q: 3. Which of the following random variables is discrete? the proportion of a population that voted in…

A: As per our guidelines,w e are allowed to answer first three sub-parts only. Thanks   A discrete…

Q: 4. Classify the following random variables as discrete or continuous: N: the number of eggs laid…

A:

Q: Which of the following random variables is not discrete? a. The number of times a die is tossed…

A: Discrete variables are finitely countable, However, the continuous variable is infinitely countable.…

Q: The distribution of the following random variable is:

A: Given that the random variable is, X¯-μsn Here, X¯: Sample meanμ: Population means: sample standard…

Q: Given that z is a standard normal random variable, find z for each situation (to 2 decimals). a. The…

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Q: 2. Which of the following random variables isn't discrete? the number of children in a family b. the…

A: Our aim is to find the correct option.

Q: 5. If z is a standard normal random variable, find the value of c: P(z < c) = 0.5557

A: Observe the table value closest to 0.5557 in the statistical table, which is 0.5557. The area value…

Q: Given the standard normal random variable​ Z, find ​Pr(−2.06​≤ Z​ ≤1.76​).

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Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: We have to find c.

Q: Assume z is a standard normal random variable. Then P(-1.96 ≤z≤-1.4) equals O a..475 O b..8942 O…

A: Given that  The Z is a standard normal variable.   We need to find area under the values…

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Q: The number of tickets purchased by an individual for Beckham College’s holiday music festival is a…

A: Solution :Given that,a = 7b = 16

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A:

Q: The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random…

A:

Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: Given : p(-c&lt; Z &lt; c )= 0.9749

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A: Discrete variable: The type of data that can take a countable number of distinct numerical or…

Q: on a separate sheet of paper. 1. Determine if each of the following situations illustrates a…

A: Note: " Since you have posted many sub-parts. we will solve the first three sub-parts for you. To…

Q: 5. If z is a standard normal random variable, find the value of c: P(z < c)= 0.6950…

A: Given information P (z &lt; c) = 0.6950

Q: . Let Z be a standard normal random variable. Use the calculator provided, or this table, to…

A: Note:Hi there! Thanks for posting the question. Since “=P≤Zc0.8888” is not clear, we assumed it as…

Q: 1. Identify if the following scenarios describe a discrete or continuous random variable. Explain…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: Let Z be a standard normal variable with parameters Nμ=0,σ=1 The value of C is,

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Q: find the following probability for the standard normal random variable z. A) P(z >1.02) B) P (z <…

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Q: Given that Z is a standard normal random variable, what is the value of Z if the area to the right…

A: According to the provided information, the area to the right of Z is 0.1949

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.