Mathematics, 14.04.2020 15:54 missheather0309
A middle school principal has 80 keys on her key chain to distribute to staff on the first day of school. Of these
80 keys, 60 open classroom doors, 40 open the door to the teachers' lounge, and 30 open classroom doors and
the teachers' lounge. Using this information, answer each of the following questions.
Let C be the event that a randomly selected key opens a classroom and T be the event that a randomly
selected key opens the teachers' lounge.
What is P(C), the probability that a key opens a classroom?
What is P(T), the probability that a key opens the teachers' lounge?
What is P(C and T'), the probability that a key opens a classroom and the teachers' lounge?
What is P(C or T), the probability that a key opens a classroom or the teachers' lounge?
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Answers: 1
Mathematics, 21.06.2019 12:30, Jasten
Timed*** there are 8 rows and 8 columns, or 64 squares on a chessboard. suppose you place 1 penny on row 1 column a, 2 pennies on row 1 column b, 4 pennies on row 1 column c, and so on … how many pennies are on each square? a = b = c = d = e = f = g = h =
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The floor plan of a room has a scale of 2.5 in.: 35 ft. in the drawing, the length of the room is 8 in. and the width of the room is 6 in. what is the perimeter of the actual room?
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Mathematics, 21.06.2019 19:00, JvGaming2001
The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll
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A middle school principal has 80 keys on her key chain to distribute to staff on the first day of sc...
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