Answer:
if we estimate this number its going to be 700,000
Answer:
b.5 hours
520-195=325
325/65=5
Step-by-step explanation:
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
I don’t see a expression...
As you've got 15%, the best thing to do is to find 10%, then multiply it by 1.5. Once you've found the tip, you add this onto the cost of the meal.
Therefore, the total cost of $25 meal with a 15% tip is $28.75
Hope this helps :)