Reference no: EM13119963
Probability
I need some step-by-step help for the following three basic problems.
1. a group of 8 professors and 5 administrators must select a team of 6 people from the group. They decide to select the team members randomly by drawing names from a hat. What is the probability that the selected team will consist of equal numbers of professors and administrators (3 of each)?
2. If you roll a single die 120 times, approximately how many times should you expect the number 5 to come up? Is the answer 1/6th of the time or 20 times?
3. In a certain craps game at a casino, if you place a bet on the "4", and a 4 comes up on a roll of the two dice before a 7 comes up, the payout odds are 9 to 5. Convert these odds to the player's win probability.
A jar contains 2 orange jellybeans, 6 red jellybeans, 6 green jellybeans and 4 yellow jellybeans. You pick a jellybean without looking.
a). What is the probability that it is orange?
b). What is the probability that it is orange, given it is NOT red?
c). What is the probability of picking yellow or green?
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Calculate the volume of the gas
: A sample of neon gas used in a neon sign occupies a volume of 1.50 L at a pressure of 630 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 793 torr.
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What is the probability to select such two cards
: On a recent English test, students were given the names of four authors and four novels (one author one title), and asked to match each novel, with the correct author. If a student just guesses randomly, what is the probability of getting zero, on..
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Determine the molar mass of the unknown acid
: a 0.5224-g sample of an unknown monoprotic acid was titrated with 0.0998M of NaOH. the equivalence point of the titration occurs at 23.82ml. Determine the molar mass of the unknown acid
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Calculate the number of moles of gas
: calculate the number of moles of gas generated when 0.165grams of aluminum reacts with hydrochloric acid
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What is the probability that it is orange
: What is the probability that it is orange? What is the probability that it is orange, given it is NOT red?
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Calculate the approximate mass of khp required
: calculate the approximate mass of KHP required to react with 40.0 mL of 0.125 M sodium hydroxide in titration.
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Probability and data collection draw a coin
: Probability and Data Collection, 1. Suppose you have 4 nickels, 6 dimes, and 4 quarters in your pocket. If you draw a coin randomly from your pocket, what is the probability that
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Find probability amd mutually exclusive events
: Probability amd Mutually Exclusive Events, A fair dice is rolled. What is the probability of rolling an odd number OR a number less than 3?
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What is the volume of hcl gas required
: what is the volume of HCl gas required to react with excess magnesium metal to produce 6.82 L of Hydrogen gas at 2.19 atm and 308 K?
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