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A random sample of 346 individuals is selected, and the individuals are classified according to their smoking habits and the smoking habits of their parents. The results are given in the contingency table below.
Parents' smoking habits:
Both parents smoke Only one parent smokes Neither parent smokeSmokes 93 51 34Does not smoke 33 40 95
Among the individuals in the sample who do not smoke, what is the relative frequency of individuals who have two parents who do not smoke?
Write your answer as a fraction.
A bowl with 10 marbles: 2 red marbles, 3 green marbles, and 5 blue marbles. We randomly select 4 marbles from the bowl, WITH REPLACEMENT, that is once a marble is selected, its color is noted and the marble is put back in the bowl (notice this doe..
What is the probability that the next 100 customers will spend an average of less than $56 on dinner?
Arbitrarily choose someone from sample. Determine the probability that they are Jewish and Democrat?
The following study was developed by Economist Simon Fass. Fass surveyed a sample population of low-income households in St. Martin. The variables analyzed were monthly income per adult and choice of rental contract for housing.
If a garage is robbed, what is the probability the doors were left open?
For the samples summarized below, test the hypothesis at ∞ =.05 that the two variances are equal. Variance Number of data values Sample 1 19 8 Sample 2 9 18
Temperature in certain city for the month of June follows a uniform distribution over the interval 61° F to 91° F. Find the temperature which 90% of the June days exceeds?
Construct a 99% confidence interval for the proportion of customers favoring underground installation.
A random sample of 52 groups gave a mean of $8.30 with a standard deviation of $2.42. Find a 90% confidence interval for the mean amount left by all groups.
Devise a method for estimating and plotting Bayesian credible regions for the paramters, using your MCMC sample and compute LS estimators of a and b,
Determine the probability that a randomly selected teacher earns more than $525 per week?
Give a possible description why serum cholesterol values for older males are lower than for younger males and reverse is true for females.
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