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Match each scenario with the correct type of random variable

Seventy percent of married couples paid for their honeymoon themselves. Suppose you randomly select 20 married couples and ask each one if they paid for their honeymoon. Please answer the following questions in the order listed, labeling your answers as A, B, C, and D. Find the probability that the number of couples who said they paid for their honeymoon themselves is exactly one. Use proper notation. Find the probability that the number of couples who said they paid for their honeymoon themselves is more than one. Use proper notation. Find the probability that the number of couples who said they paid for their honeymoon themselves is between 10 and 15 inclusive. Use proper notation. What is the range of usual number of couples who paid for honeymoon themselves?

Let X represent the number of tires with low air pressure on a randomly chosen car. The probability distribution of X is as follows.  Discrete Probability distribution x p(x) 0 0.1 1 0.3 2 0.3 3 0.2 4 0.1   Use Excel or Formula. Compute the standard deviation. Round your answer to three decimal places. Use proper notation.

What is the probability of randomly selecting a teenager who spends less than 4.09 hours on screen? Round your answer to two decimal places.

Let X represent the number of tires with low air pressure on a randomly chosen car. The probability distribution of X is as follows.  Discrete Probability distribution x p(x) 0 0.1 1 0.3 2 0.3 3 0.2 4 0.1   Use Excel or Formula. Compute the mean. Round your answer to three decimal places. Use proper notation.

Based on the histogram, what is the size of the set of data (use proper notation)? Is the given set a population or a sample?

Do you think your gender affects what type of pet you own? Use the following table, showing preferences for various pets by owner gender Pets and Owners Gender of the owner Cats Dogs Other Pets Total Male 100 50 30 180 Female 50 50 20 120 Total 150 100 50 300 Find the probability that a randomly chosen person is a female or does not own a cat. Round your answer to three decimal places if needed.

In the first four steps of the citric acid cycle, whereby acetyl-CoA and oxaloacetate are converted to succinyl-CoA, which of the following is also produced? A) 3 NADH                 B) 1 GTP C) 1 FADH2 D) 2 CO2

The cholesterol serves as the precursor for the following biosynthetic pathways, EXCEPT A) Bile acid synthesisB) Steroid hormone synthesisC) Aldosterone synthesisD) Thyroid hormone synthesis.

Which of the following is NOT an intermediate in cholesterol synthesis? A) isoprene             B) squalene C) mevalonate D) malonyl-CoA