K easy 1 change 10 to -10 add it to -30 and get -40 divid -40 by 3.5 and get
x<-11 (if im worng sorry i am in pre algebra not algebra but i am good at math not fractions wet)
3+28/7+4*5 /reduce the fraction with 7
=> 3+4+20
=> 27
Answer:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
The expected value is given by this formula:
For this reason the best option is:
D. E (X )=np
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
The expected value is given by this formula:
For this reason the best option is:
D. E (X )=np
Answer:
5/6 cups
Step-by-step explanation:
Total cups = 2/3 + 1/6
= 4/6 + 1/6
= 5/6