A student is taking an exam and doesn't know the answers to 3 of the questions, so they decide to guess randomly on all three of them. One of the questions is a true/false question, one is a multiple choice question with 3 possible answers, and one is a multiple choice question with 4 possible answers. What is the percentage chance that they will answer all 3 questions correctly?

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A: General formula of probability is , Probability =Number of favorable outcomesTotal outcomes  

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A: An index number may be defined as the specialised average designed to measure the change in the leve...

Q: A metal bolt is to be inserted into a hole. A random sample of n =16 parts is selected, and the hole...

A: Givenn=16s=0.008confidence interval = 95%

Q: When conducting a hypothesis test (or test of significance), select all the true statement. assume t...

A: True statement and fill in the blanks.

Q: 4. List the possible samples and the corresponding means in the table. Samples Means 5. Fill in the ...

A: Possible sample of size 3 from 18, 22, 25, 28, 32, 36:      Samples Means 18,22,25 21.67 18,2...

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,...

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Q: Forys and Dahlquist (2007) investigated the effects of coping style and cognitive strategy on dealin...

A: ANOVA test : ANOVA, or analysis of variance, is a statistical method for separating observed varianc...

Q: 11 % of the 100 students in Emmie Xi Hem International School students said that they had been late ...

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Q: 42. If X is a Poisson variate, such that P(X = 2)=9(X =4)+90P(X =6) %3D Find i) 1, the mean of X and...

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Q: Identify the parameter(s). Whether or not a person consumes alcohol. The population mean amount of ...

A: Let population mean μ be the average American consume 100 lit Given  Sample mean x̄=85.7, n=sample s...

Q: In a certain distribution the following résults were obtained. X= 45, Median = 48, Coeff. of Sk=- 0....

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Q: We collect a poll of size n = 100 by randomly selecting participants from the whole population of el...

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Q: A random sample of 50 lumbar supports used by go-cart racers were subjected to a crash test, and tea...

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Q: Express the confidence interval 84.4%±4%84.4%±4% in interval form. Express the answer in decimal ...

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Q: $2. In 2004 for working class people wheat was selling at an average price of Rs. 16 per 20 kg, clot...

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Q: A car hiring company has 12 Tata sumos and 8 Qualis. If 5 of these cars go to workshop for repairs a...

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Q: Dunkins Corporation would like to buy insurance for their employee. The distributions are as follows...

A: Given the data as Betty, Carol & Emily Fendy & Qalid Loss outcome Probability Loss outc...

Q: partial Correlation For the data in the following table, X¡ 31 22 15 yi 17 51 33 78 40 77 15 39 18 1...

A: Correlation is the measure that used explains the strength of relationship between the two numerical...

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Q: For the Value at Risk model, which is false? A. It has been criticized for ignoring the existence o...

A: In this question multiple option is available We need to find which statement is false

Q: find the critical value that corresponds to a confidence level of 90.8%.

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Q: A consumer products company is formulating a new shampoo and is interested in foam height (in millim...

A: The null and alternative hypothesis is H0:µ =175 and H1:µ>175 Here, standard deviation is 20.

Q: Express the confidence interval 80.1%±3.4%80.1%±3.4% in interval form.

A: The confidence interval is given by 80.1%±3.4%

Q: For each situation, name the population and the sample. a) 150 students are surveyed to determine wh...

A: Population contains all element which related to the study. Sample is a sub part of population which...

Q: There are 16 applicants for a job. Among them 10 are poșt graduates. If 3 applicants are chosen at r...

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Q: Out of 500 people sampled, 365 had kids. Based on this, construct a 95% confidence interval for the ...

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Q: Identify the null and alternative hypothesis for the given scenario: Students earning a Master's deg...

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Q: Calculate the mean deviation from the mean for the following data : Size : 2 6 8 10 12 14 16 ency : ...

A: We have given that data Mean = sum of all observations/total number of observations.   

Q: The following are the prices of commodities in 2016 and 2017. Calculate a price index based on price...

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Q: Carry out the hypothesis test for the mean of a normally distributed population given the following ...

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Q: Number of medals 1. Number of scouts 1-2 3-5 7 8-11 12-15 16-20 21-30 10 16 42 12 10 40 48 12 10 Con...

A: To draw histogram we represents class intervals (no. Of medals) on X axis and frequencies (no. Of sc...

Q: The manager of Tee Shirt Emporium reports that the mean number of shirts sold per week is 1,210, wit...

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Q: In how many ways can a student answer 5 out of 8 questions if he is required to answer 3 of the firs...

A: Here use combination 

Q: sotopes Ag107 to Ag. Its mean is 1.076, and measurements m sample of observed isotopic abundance rat...

A: *Answer: 

Q: For a hypothesis test, significance level, alpha, = 0.05 The computed P-Value = 0.067 Should the n...

A: For a hypothesis test, significance level, alpha, = 0.05   The computed P-Value = 0.067   Should the...

Q: The average American consumes 100 liters of alcohol per year. Does the average college student consu...

A: Identify the population(s).

Q: Compute median from the following data: Mid-value Frequency Mid-value Frequency 115 165 60 125 25 17...

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Q: A binomial distribution is symmetric at p=1/2 and approaches symmetry when n → ∞ for a fixed p

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Q: 1. a) An ice cream cart sells three flavors; chocolate, vanilla, and strawberry. If you order a cone...

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Q: a) Suppose that Game store in Polokwane donated a lot of 8 computer sets that includes 3 which are m...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

Q: If a researcher wants to have a distribution of a sample that is approximately normal then that rese...

A: solution-: If a researcher wants to have a distribution of a sample that is approximately normal the...

Q: A sample is obtained from a population with m = 200 and s = 40.  Which of the following samples woul...

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Q: Express the confidence interval 23.5±101.123.5±101.1 in the form of a trilinear inequality.  <μ<

A: Given: mean (x¯) = 23.5 Margin of error (M.E.) = 101.1