The probability that a cellular phone company kiosk sells X number of new phone contracts per day is shown below.

Q: Approximate the probability that X is greater than 70 and less than 90.

A:

Q: The probability that the supermarket will stop selling cereal is

A:

Q: A) If the average number of rodents in a cotton farm with an area of 20 acres is 2 per acres,…

A: As per guideline I have calculated 1st main question  Here given,  If the average number of rodents…

Q: one student is chosen at random, nd the probability that the student was female OR got an "A".

A: The number of females is 24, the number of students got an A is 29 and the total number of students…

Q: Make a comment on the probabilities as the number of die increases.

A: Number of die increases in the sense we are assuming in place of 1 die we need to use multiple dies…

Q: Carson has a 30% chance of beating his brother in a race. If they raise 10 times, what is the…

A: (n C r) prqn-r

Q: dally. (a) Approximate the probability that more than 10500 commuters will use the light rail daily.

A: Here use normal approximation

Q: aple of fifty college students, what is the probability that at least forty of them participate in a…

A:

Q: (a) Find the probability of randomly selecting a household that has one or two televisions.

A: here given discrete probability distribution for no. of television per household x= no. of…

Q: The probability that Team B beats Team A in any given game is .6. What is the probability that Team…

A: It is given that , The probability that team B beats Team A in any game is , p= 0.6. The Team B wins…

Q: The injury rate of a volleyball player is 20%. If he throws the ball 100 times, and if you know that…

A:

Q: In a local archery contest, the probability that Samuel will be successful on each shot is 82.5% If…

A: Let X be the random variable from binomial distribution with probability of success (p) = 82.5% =…

Q: On a five-day vacation, the forecast is a 55% chance of rain every day. What’s the probability that…

A: Let p denote the probability of rain every day = 0.55 Let n be days in an vacation = 5 Let the R.V X…

Q: A basketball player traditionally makes 80% of her free throws. Suppose she shoots 10 baskets and…

A: Given,n=10p=0.8A random variable X~Binomial(n=10 , p=0.8)P(X=x)=Cx0.8x1-0.810-x  ;…

Q: Serious worker injuries at a coal mining company average 2.7 per year.  Given that safety conditions…

A: # Serious worker injuries at a coal mining company average 2.7 per year.  Given that safety…

Q: The probability that a medical student owns a laptop is 0.47, owns a MP4 is 0.45, and owns either a…

A: Given The probability that a medical student owns a laptop is 0.47 The probability that a medical…

Q: hat is the probability that their third daughter is their sixth child?

A: here given , a couple decides to have children until they have three daughters  Probability of male…

Q: Can the value 2 be a probability?

A: Valid conditions for probability: The probability is non-negative. That is, the probability is…

Q: Amarillo Slim, a professional dart player, has an 80% chance of hitting the bullseye on a dartboard…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: A set of traffic lights shows green for 45 seconds, amber for 5 seconds and red for 30 seconds. When…

A: It is given that the set of traffic lights shows green light for 45 seconds, amber light for 5…

Q: The probability that a house in an urban area will develop a leak is 6​%. If 13 houses are…

A: Given : The probability that a house in an urban area will develop a leak is 6​%. 13 houses are…

Q: At a particular restaurant, 56% of all customers order an appetizer and 42% of all customers order…

A:

Q: Thirty percent of hospital admissions for diabetic patients are related to problems with the…

A: Thirty percent of hospital admissions for diabetic patients are related to problems with the…

Q: The probability the shipment wil be rejected is

A: here given, there are 50 watches in shipment in which 10 are defective 10 watches are selected as…

Q: . Sarah buys 6 raffle tickets. If a total of 300 raffle tickets are sold, what is the probability…

A: Given:- Sarah buys raffle tickets= 6 Total number of tickets are sold= 300

Q: Consider the tossing of a pair of dice. Find the probability that the sum of the two die is 6.…

A: The possible outcome for a pair of dice is 36. which is as follows: (1,1), (1,2), (1,3), (1,4),…

Q: In the game of Monopoly, a player is sent to jail if he or she rolls doubles with a pair of dice 3…

A: In a game of monopoly, player is sent to jail if he or she rolls doubles with a pair of dice 3 times…

Q: What is the probability that X equal 2?

A: The probability of rolling a four = 1/6 = p  n = 8

Q: The probability that a house in an urban area will develop a leak is 55​%. If 22 houses are…

A: Let "X" be the houses that will develop a​ leak.

Q: (CDF) for the probability

A:

Q: Approximate the probability that X is greater than 70 and less than 90. i

A: Using Normal Approximation to Binomial Mean = n * P = ( 200 * 0.4 ) = 80 Variance = n * P * Q = (…

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: From the provided information, Guests who visit Yosemite National Park like to stay at an overnight…

Q: The table shows the number of boys and girls that have black, blonde, brown, or red hair color. What…

A: The table represents the number of boys and girls that have black, blonde, brown, or red hair color:…

Q: On average, a textbook author makes three word-processing errors per page on the first draft of her…

A: Given The author makes three word processing error per page

Q: Where is probability used?

A:

Q: Find the probability that he will arrive on time at school. If he arrived on time at school today,…

A: Given : P(catching the 7 am bus) = 0.8 P(not catching the 7 am bus) = 0.2 Now, P(arrive on time |…

Q: On average, a textbook author makes two word processing errors per page on the first draft of her…

A: Given,      λ=2    Let 'X' is the no. of Errors made by the author.    X~Poisson λ=2…

Q: The probability that a certain PBA import can hit a three-point shot is 30%. What is the probability…

A:

Q: Find the probability that the patient has been tested a.) At least once b.) 2 or 3 tests done

A: Given data: To find: a.) At least onceb.) 2 or 3 tests done

Q: d) A telemarketer will give an average of 4 calls in an hour. Find the probability that he will give…

A: Given that  1 hour  = 60 minutes  1.5 hours = 90 minutes Average calls in an hour=4 Average calls in…

Q: A survey revealed that 36% of people are entertained by reading books, 30% are entertained by…

A: Let us denote B=reading bookT=wating TVgiven that n(B)=36%=0.36, n(T)=30%=0.30, n(B and T)=11%=0.11

Q: the probability that more than 6 will need a warranty repair?

A: here given n = 20 p = probability that car needs warranty repair q = 1-p = 0.8 here use binomial…

Q: d) If gender does not have any effect on employment, calculate the probability that the graduate…

A: The contingency table is   Female Males Total Employed 30 10 40 Unemployed 20 40 60 Total…

Q: A place kicker in the NFL makes 78% of his field goals. If the outcomes are independent, what is the…

A: Given: p=0.78n=8q=1-p=1-0.78=0.22 The probability that he makes exactly 6 of the next 8 field goals…

Q: Suppose a baseball player's batting average is .325. What is the probability that in the next 100…

A:

Q: Find the probability distribution for the number of heads that occur when 4 coins are tossed.

A:

Q: Find the probability the service was poor, given that the meal was dinner.

A: The conditional probability formula is, PA|B=PA∩BPB The probability that the person is divorced…

Q: in a public control room there are on an average 3 calls per 10 minutes interval. find the…

A: Let X=the number of calls in a 10-minute interval. X follows a Poisson distribution with mean=3…

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.