What percentage of the widow students are  female

Q: The failure rate for taking the bar exam in Philadelphia is 41%.  If 375 people take the bar exam,…

A: Given that, The failure rate for taking the bar exam in Philadelphia is 41%  i.e. probability, p =…

Q: Find the proportion of employees who take at least three personal days.

A: Given : Let random variable "X"  represent the number of personal days the employees take in a year…

Q: In each shipment there is an average of 2%% of defective bolts. How many bolts can be expected to be…

A: (3).   An average of 212% bolts are defective. Therefore 212% of 360 dozen bolts are defective.

Q: what is the average number of traffic accidents

A: Discrete series means where frequency  of a variable are given but the variable is without class…

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: The table below show the sample of ages of teenagers start smoking. What is the percent cumulative…

A: Given, Ages Frequency 18 10 19 15 20 5 21 6 22 2 23 4 24 9 25 4

Q: Suppose the profit the Honda dealership makes on the next 5 Accords it sells are: 443, 1,058, 766,…

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Q: An IQ score for which 15% of the population has a higher score and 85% have a lower score…

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Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

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Q: There are 5500 students at a college, 2860 of them are fema What percent of students are female?

A: Topic = Algebra

Q: Which types of car were driven by more than 623 respondents in the survey?

A: Here use proportion from given pie chart And calculate no of people drive that type of car

Q: One month is what percentage of a year, given that there are 7 days in a week, 4 weeks in a months…

A: One month is what percentage of a year,  given that there are 7 days in a week, 4 weeks in a months…

Q: Here are the fuel efficiencies (in mpg) of 8 new cars. 45, 20, 45, 14, 34, 22, 18, 28 What is the…

A: Given information- We have given the data of the fuel efficiencies of 8 new cars (arranged in…

Q: In a shipment of 500 light bulbs, 25 of them were broken. What percentage of the light bulbs were…

A: Given ,  In a shipment of 500 light bulbs , 25 of them were broken . We have to find the  percentage…

Q: Imagine that the pregnancy test accurately indicates pregnancy in 97.5% of the people who have it.…

A: The miss rate will be 2.5%

Q: What percentage of the sample were female drivers?

A: It is given that Total = 5+7+11+9 = 32 Number of females = 7+9 = 16

Q: If 2% of the components produced by a machine are defective, what is the average number of defective…

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Q: n Exton School, 60% of the boys play football and 36% of the boys play ice hockey. Given that 40% of…

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Q: What percentage of pets are Rabbits?

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Q: What percentage of students guessed between 41 and 44

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Q: What percentage of Births occurred among women between the ages of 40 and 42?

A: From the given table we have Total number of births = sum of all observation…

Q: Here are the fuel efficiencies (in mpg) of 12 new cars. 52, 32, 18, 14, 48, 22, 36, 55, 12, 20, 14,…

A:

Q: What percentage of scores are between scores 75 and 89?

A: By emperical rule  P(-1<Z<1)= 0.68 P(-2<Z<2)=0.95 P(-3<Z<3)= 0.

Q: What percentage of scores are between scores 68 and 82?

A:

Q: What percentage of the worker will finish this job within 30 minutes of the population mean? What…

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Q: Suppose that 35% of people own dogs. If you pick two people at random; what is the percent that they…

A: Solution: From the given information, the probability of people own dog is 0.35. Here, two people…

Q: The mean age of a combined group of men and women is 30 years. If the mean age of the group of men…

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Q: There are 12 boys in a class of 30 students. What percentage of the class is boys?

A:

Q: How many scores are in the population?

A: here given, SS = 328 variance = σ2 = 8

Q: . what percentage of females will be forced to look for new pa

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Q: What percentage of the blocks are red?

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Q: 35 out of 125 students are in the marching band. What percent of students are in the marching band?

A: Given: 35 out of 125 students are in the marching band.

Q: Deflation is..

A: Given, To define deflation

Q: 7. What percentage suffered for fewer than 61 hours?

A: Given that.   X~N( μ , ?^2 )   μ=83     , ?=20   Z-score =( x - μ )/?

Q: For the  past month, 60 new cases of a disease were added to an existing 540 cases. If 2500 people…

A: New cases = 60  Existing cases = 540 Total Cases = 600

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: The mean salary for 24 factory workers is ₱12 000. How much will one additional salary of ₱37 000…

A:

Q: Here are the fuel efficiencies (in mpg) of 15 new cars. 49, 35, 17, 21, 27, 23, 45, 50, 39, 51, 41,…

A:

Q: The median age at first marriage of US Woman (26.1 years) is what percentage less than the median…

A: We have been given the median age of woman and men and we have to find median age of woman is what…

Q: how many classes are there and what is the class width? what is the what is the percentage of…

A: From the given frequency table find # classes = ? width =? x =# of hours played video game P(…

Q: The mean daily wage for 9 construction workers is ₱400. How much will one additional daily wage of…

A: Given that The mean daily wage for 9 construction workers is ₱400.  We have to find How much will…

Q: If a coin is flipped 225 times and the number of Hs is 75. Compute the proportion of Hs. Round to…

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Q: Suppose that the result of a public opinion poll shows that just 10% of people would be willing to…

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Q: a. How many of the 125 people had resting pulse rates of more than 100? b. What percentage of people…

A: a. There are totally 125 people who had resting pulse rates. Count the number of dots that are above…

Q: What is the fraction of deaths that happened before 2012?

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Q: The mean weight of 15 wrestlers is 110 kgs. The mean weight of 5 of them is 100 kgs and another 5 is…

A: Given that, the mean weight of 15 wrestlers is 110 kgs. The mean weight of 5 of them is 100 kgs and…

Q: A diastolic blood pressure greater than 90 is classified as hypertension (high blood pressure). What…

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Q: In a group of 50 children, 11 cannot swim. What percentage can swim?

A: Givenno.of children in a group=50no.of children cannot swim=11

Q: A statistics class is made up of 12 men and 18 women. What percentage of the class is​ male?

A: Given,no.of mens=12no.of womens=18total no.of peoples=30

Q: Of all the species in the world, 4 out of every 5 are insects. What percentage of species are…

A:

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.