Question

2. In a test for ESP, the experimenter looks at cards that are hidden from the...

2. In a test for ESP, the experimenter looks at cards that are hidden from the subject. Each card contains either a star, a circle, a wave, or a square. As the experimenter looks at each of 40 cards in turn, the subject names the shape on the card. Assume that the subject is merely guessing.

a) Find the probability that the subject guesses exactly 11 cards correctly.

b) Find the probability that the subject guesses at most 11 cards correctly.

c) Let X = the number of correct cards. Find the expected value, variance, and standard deviation of X.

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
2. In a test for ESP, the experimenter looks at cards that are hidden from the...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • In a test of ESP (extrasensory perception), the experimenter looks at cards that are hidden from...

    In a test of ESP (extrasensory perception), the experimenter looks at cards that are hidden from the subject. Each card contains either a star, a circle, a wavy line, or a square. An experimenter looks at each of 100 cards in turn, and the subject tries to read the experimenter's mind and name the shape on each. What is the probability that the subject gets 35 or more correct if the subject does not have ESP and is just guessing?

  • (14.18) In a test for ESP (extrasensory perception), a subject is told that cards the experimenter...

    (14.18) In a test for ESP (extrasensory perception), a subject is told that cards the experimenter can see but he cannot contain either a star, a circle, a wave, or a square. As the experimenter looks at each of 5 cards in turn, the subject names the shape on the card. A subject who is just guessing has probability 0.25 of guessing correctly on each card. Assume the subject's guesses are independent of each other. The probability (±±0.0001) that the...

  • in a test of ESP (extrasensory perception), the experimenter looks at cards that are hidden from...

    in a test of ESP (extrasensory perception), the experimenter looks at cards that are hidden from the participant. Each card contains either a star, a circle, a wavy line, or a square. An experimenter looks at each of 100 cards in turn, and the participant tries to read the experimenter's mind and name the shape on each. The probability that the participant gets at least 30 correct if the participant does NOT have ESP and is just guessing is closest...

  • In a test of ESP (Extrasensory perception), the experimenter looks at cards that are hidden from...

    In a test of ESP (Extrasensory perception), the experimenter looks at cards that are hidden from the subject. Each deck of 60 cards contains equal numbers of cards with a star, a circle, a wavy line, or a square. An experimenter looks at each of the 60 cards in turn, and the subject tries to read the experimenter's mind and name the shape on each. What is the standard deviation of the number of correct responses if the subject does...

  • prob 24 One test for claims of extrasensory perception (ESP) involves using Zener cards. Each card...

    prob 24 One test for claims of extrasensory perception (ESP) involves using Zener cards. Each card shows one of five different symbols (square, circle, star, cross, wavy lines), and the person being tested has to predict the shape on each card before it is selected. Using the Distribution tool below, find each of the probabilities requested for a person who has no ESP and is just guessing. Standard Normal Distribution Mean 0.0 Standard Deviation 1.0 5000 5000 0.0 0,0000 1.0...

  • 1. Choose a student in grades 9 to 12 at random and ask if he or she is studying...continues

    1. Choose a student in grades 9 to 12 at random and ask if he or she is studying a language other than English.Here is the distribution of results:Language Spanish French German All others NoneProbability 0.25 0.08 0.04 0.02 0.61What is the conditional probability that a student is studying Spanish, given that he or she is studying some language other than English? Round your answer to 3decimal places.________________In a test for ESP (extrasensory perception), a subject is told that cards...

  • A noted psychic was tested for ESP. The psychic was presented with 200 cards face down...

    A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and was asked to determine if the card was one of 5 symbols: a star, cross, circle, square, or three wavy lines. The psychic was correct in 49 cases. Let p p represent the probability that the psychic correctly identifies the symbol on the card in a random trial. Assume the 200 trials can be treated as an SRS from the population of all...

  • (2 pts) A noted psychic was tested for ESP. The psychic was presented with 180 cards...

    (2 pts) A noted psychic was tested for ESP. The psychic was presented with 180 cards face down and was asked to determine if the card was one of 5 symbols: a star, cross, circle, square, or three wavy lines. The psychic was correct in 43 cases. Let p represent the probability that the psychic correctly identifies the symbol on the card in a random trial. Assume the 180 trials can be treated as an SRS from the population of...

  • 5.10 In il test for extrasensory perception (ESP), the subject has to guess which one of...

    5.10 In il test for extrasensory perception (ESP), the subject has to guess which one of three cards lying face down on a table is the ice of spades, Suppose that the subject has no ESP and is just guessing. Find the probability that in 12 guesses, the number of cards guessed correctly is a. 4 b. 5 c. 6 d. less than 6 e. nt Icast 6 f. more than 6

  • Problem List Next Problem Previous Problem (4 points) A noted paychic was tested for ESP. The...

    Problem List Next Problem Previous Problem (4 points) A noted paychic was tested for ESP. The psychic was presented with 200 cards face down and was asked to determine if the card was one of 5 symbols: a star, cross, circle, square, or three wavy lines. The psychic was correct in 49 cases. Let p represent the probability that the psychic correctly identifies the symbol on the card in a random trial. Assume the 200 trials can be treated as...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT