Mathematics, 03.12.2020 02:10, shalynmincey
In an experiment on the behavior of young children, each subject is placed in an area with five toys. The
variable of interest X is the number of toys that the child plays with. Past experiments with many subjects
have shown that the probability distribution of the number X of toys played with is as follows:
X (number of toys) 0 1 2 3 4 5
P (X) 0.03 0.16 0.30 0.23 0.17 0.11
a) How many toys might you expect a child to play with?
b) What is the standard deviation of the number of toys played with?
c) Describe how you might carry out a simulation to estimate the mean number of toys played with
(don't actually do the simulation, just set it up).
Answers: 2
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The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school. each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220
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In an experiment on the behavior of young children, each subject is placed in an area with five toys...
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