Answer:
Substitution
Step-by-step explanation:
All you have to do is input the number 5 for x
3/5 times 1100= 660
1100-660= 440
440 times .70 = 308
440-308= 132 fish were not bluegill or catfish
Answer:
I'm not sure if I get your question completely: so the first equation can be simplified to 35 x + 5 = 90 and the solution to that would be x = 17/7.
The second one to 35 x + 5 = 180 and the solution to it would be x = 5.
Step-by-step explanation:
Anything else? :D
Answer:
The probability distribution of X is:
Step-by-step explanation:
"Tossing a coin and getting H" can be modelled as a Bernoulli random variable. The variable X is a sum of 4 of this Bernoulli variables, we can model X as a binomial random variable, with p=0.5 and n=4.
The values X can take are: 0, 1, 2, 3 and 4.
The values of this probability are calculated as:
Where
p: is the probability of tossing a coin and getting a Heads
q: is the probability of tossing a coin and not getting a Heads.
The binomial number is a way to calculate the possible combinations of getting a certain amount of heads.
For example, in 4 tosses, there are 6 ways or combinations of getting 2 heads and 2 tails: