Answer:
The mean will be increased by 5
Step-by-step explanation:
Suppose a set of data
Mean is defined as sum of all the values given set of data divided by total number of values.
Mean1 =
Now if we add 5 toeach value, the new set becomes
for which,
Mean2 =
Mean2 - Mean1 = 5
Answer:
16
Step-by-step explanation:
KEEP CHANGE FLIP
10/1 divided by 5/8 turns into
10/1 multiplied by 8/5, which is
80/5 = 16
Answer:
Probability of more than 1 death in a corps in a year
12.52%
Probability of no deaths in a corps over 7 years
1.40%
Step-by-step explanation:
If the data collected follow a Poisson distribution with mean 0.61, then
Probability of k deaths in a year is
The probability of more than 1 death in a corps in a year would be
(1)
But the Taylor series around 0 for the exponential function is
So,
and
Replacing in (1), we obtain
or 12.52%
b)
The probability of 0 deaths in one year is
As the events are independent, the probability of 0 deaths over 7 years is the product of P(0) by itself 7 times:
or 1.40%
Answer:
Percentage can be calculated by dividing the value by the total value, and then multiplying the result by 100.
<u> value </u> · 100%
total value
I'm assuming the funds earn 5% yearly?
Call x the amount he saves every year. The first year's deposit will be multiplied by 1.05 three times, the next will be multiplied by 1.05 twice, the third will be multiplied by 1.05 once, and the fourth will not generate interest (as it will immediately be used to buy the car).
Therefore, x(1.05^3+1.05^2+1.05+1)=21000, so 4.31x=21000. Dividing by 4.31, we see that x is approximately equal to 4872.