Answer:
d. Both (b) and (c) are feasible conclusions
Step-by-step explanation:
Given that the time it takes Jessica to bicycle to school is normally distributed with mean 15 minutes and variance 4.
i.e. X the time it takes for Jessica to reach school is N(15,2)
One day Jessica said it took 23 minutes to get to school
i.e. 4 std deviations above the mean time it took
the prob for this is almost 0 which is very unusual.
Either the distribution is not symmetric as mentioned normal or the time is unusual
Hence correct option woul dbe
b. A commuting time of 23 minutes is highly unusual or atypical. and
c. The distribution of commute times MAY NOT be normal with mean 15 minutes and standard deviation 2 minutes
So both b and c are feasible conclusions
Answer:
B, C and F
Step-by-step explanation:
<u>A constant is where a variable or number is on its own</u>
B - 2x-4 (4 is the constant)
C - 8x+y (y is the constant)
F - 7+4x (7 is the constant)
52
—— = 2.47619 Does this answer your questions
21
Lol u said h0
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