Answer:
yes it is a natural number
Answer:
17000 batteries
Step-by-step explanation:
Three years and one month is equivalent to the mean minus one standard deviation.
Three years and seven months is equivalent to the mean plus one standard deviation.
For a normal distribution, we know that 68% of population is between mean ± 1 sd, then can be expected that 25000*68% = 17000 of batteries last between three years and one month and three years and seven months
Answer:
(a) 0.000000373248
(b) 0.999999626752
Step-by-step explanation:
The aircraft works when at least one of its components works
Probability of failure, f=0.0072
Probability of success, s=1-0.0072=0.9928
(a)
P(all three components fail)=
probability==0.000000373248
(b)
Probability (at least one of the components does not fail)=1-P(all three components fail)
Probability=
Probability=1-0.000000373248=0.999999626752
The following formula for compound interest applies:
where A is the amount after t years, P is the principal and r is the annual interest rate expressed as a decimal. Plugging the given values into the formula gives:
The amount after 4 years is therefore $2,431.01
Answer:
0.09
Step-by-step explanation:
All the possible outcomes are listed below if the condition of at least 2 books from each subject has to be satisfied
Option 1 - 3 books from mathematics, 2 books from chemistry and 2 books from astrology
Option 2 - 2 books from mathematics, 3 books from chemistry and 2 books from astrology
Option 3 - 2 books from mathematics, 2 books from chemistry and 3 books from astrology
The probability for option 1 = 3/10 x 2/8 x 2/5
= 0.03
The probability for option 2 = 2/10 x 3/8 x 2/5
= 0.03
The probability for option 3 = 2/10 x 2/8 x 3/5
= 0.03
The final probability = Probability of option 1 + Probability of option 2 + Probability of option 3
= 0.09
Note: The order does not matter because it is given that he is packing for vacation, and HASTILY throws 7 books into his suitcase.