Answer:
The answer is D the number that is 13 to the right of -4 on the number line.
Step-by-step explanation:
Answer:
20 kg
Step-by-step explanation:
To calculate the amount of rice left we have to find 2/3 of 30

Answer:
5.75 meters
Step-by-step explanation:
Here we are told that , the trolley added to the stack , increases the length by 25 cms or 0.25 mts.
Hence every trolley stacked will add 0.25 mts to the trolley already stacked. However the first trolley in 20 trolleys will be occupying 1 mt only. Hence , rest of the 19 trolleys will be covering 0.25×19=4.75 mts.
Hence , total distance covered by 20 trolleys =
1+4.75=5.75 mts
Answer:
H.
Step-by-step explanation:
H does not depend on a number.
Answer:
a. E(F)=0.875
b. 99.9976%
c. P(X=2)=0.1683
Step-by-step explanation:
a. We notice that this is a binomial distribution with the probability of success;

#We are given the sample size, n=7. The Expected value is calculated as:

Hence the expectation, E(F)=0.875
b. To calculate the probability of the range of F, we need to calculate all possible outcomes of F in the given sample;

Hence, the range of F is 99.9976%
c. The probability that F=2 is calculated using the binomial distribution function as:

Hence, the probability of F=2 is 0.1683