Recent content by Nikkit

  1. N

    Where is the image of the person, relative to the surface of the globe?

    A person 1.9m tall stands 0.74m from a reflecting globe in a garden. If the diameter is 16cm, where is the image relative to the surface of the globe? How large is the persons image? Please Explain...
  2. N

    What is the mean and standard deviation of your net winnings?

    To play a game, you must pay $5 for each play. There is a 10% chance you will win $5, a 40% chance you will win $7, and a 50% chance you will win $3. Can you explain how to solve this please.
  3. N

    What is the mean and standard deviation of your net winnings?

    To play a game, you must pay $5 for each play. There is a 10% chance you will win $5, a 40% chance you will win $7, and a 50% chance you will win $3. Can you explain how to solve this please.
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