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In: Math

A box contains six 25-watt light bulbs, nine 60-watt light bulbs, and five 100-watt light bulbs....

  1. A box contains six 25-watt light bulbs, nine 60-watt light bulbs, and five 100-watt light bulbs. What is the probability a randomly selected a 60 watt light bulb? (PLease explain how did you get your answer)(2 pt) Note: You must provide your answer as a fraction NOT decimal)

  2. Cell Phone Provider

    Probability

    AT&T

    0.271

    Sprint

    0.236

    T–Mobile

    0.111

    Verizon

    0.263

    Does the above table represent the probability model? Explain your answer. (2 pt)
  3. The data shows the distance that employees of a certain company travel to work. One of these employees is randomly selected. Determine the probability that the employee travels between 10 and 29 miles to work. (2 pts)

    Distance (miles)

    Number of employees

    0 – 9

    124

    10 – 19

    309

    20 – 29

    257

    30 – 39

    78

    40 – 49

    2

  4. In Q3, Is the probability the employee travels between 40 and 49 miles to work considered to be unusual? Explain your answer. (2 pt)
  5. The probability that a randomly selected murder resulted from a rifle or shotgun is

    P(rifle or shotgun) = 0.059. Interpret this probability. (2 pt)

    Choose one of the correct answers from below.

    A. If 1000 murders were randomly selected, we would expect about 59 of them to have resulted from a rifle or shotgun.
    B. If any person is randomly selected, there is a 59 % chance the person will be murdered with a rifle or shotgun.
    C. If any person is randomly selected, there is a 5.9% chance the person will be murdered with a rifle or shotgun.
    D. If 1000 murders were randomly selected, exactly 59 of them would have resulted from a rifle or shotgun.

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