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Q1. A man has blood type B. The man's mother was type AB and his father was type A. If his wife has blood type O and is expecting a baby, what is the probability the baby will have blood type
a. A?b. B?c. O?d. AB?
Q2. For some types of plants, when plants with different colored flowers are crossbred, one color does not dominate over the other. Instead, the offspring have flowers that are a blend of the colors of the 2 parent plants. Mendel found that when he crossed a snapdragon with red flowers with a snapdragon with white flowers, the resulting offspring had pink flowers. In other words, when a red snapdragon of type RR was crossbred with a white one of type WW, the resulting offspring of type RW had pink flowers. Suppose a white snapdragon is crossbred with a pink snapdragon. What is the probability that a resulting offspring will be:
a. Red?b. White?c. Pink?
Q3. 6 cards are dealt from a standard deck. What is the probability that the hand contains 3 cards of 1 rank, 2 cards of a 2nd rank, and 1 card of a 3rd rank?
A teacher claims that the variance on a calculus test is 68. A sample of 28 students had a standard deviation of 5.8. Test the teacher's claim at the 0.05 level of significance.
A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The Traffic Department claims that a modification in the type of light will reduce these accidents.
A thermometer is randomly chosen and tested at 0 degrees C. What is the probability of a reading of less than -2.75 degrees C?
What fraction of the company's product is good? What percentage is blemished? If an unit of product is selected at random and found to be blemished, what is the probability that it was produced on machine B?
The F-test cannot be used to answer whether or not there is a significant difference between the means.
Which of these following statements provides the best guidance for the model building?
q1. researchers asked a sample of 50 1st grade teachers and a sample of 50 12th grade teachers how much of their own
In a mobile phone shop on a Sunday morning, out of n = 77 customers x = 19 buy a mobile phone. What is the 95% confidence interval for the proportion of customers buying a mobile phone?
1.below is a normal plot of residuals from a regression. does the plot indicate any problems with the assumption that
How much production capacity should the manufacturer reserve for the last day?
A simple regression model has been developed using a sample of 11 pairs of observations. The sum of squares of error is 237.64. The standard error of the estimate is:
If the population standard deviation is known to be 7.5 hours, can we conclude at the 5% significance level that he is right?
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