I need help on this plzzz
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
The number to be added is the square of half of the linear term coefficient. Such coefficient in our case is "10" (the number accompanying the variable x). Then, half of it is 10/2 = 5, and that number squared gives 25.
Therefore, the number to add on bothsides of the equality is 25, which leads to the following:
This matches answer B) of your choices.
Answer: The probability that exactly 2 insects will survive = 0.2501
Step-by-step explanation:
Given: A certain insecticide kills 80% of all insects in laboratory experiments.
The probability that a particular insect survives= 1-0.80=0.20
Sample size: n=14
Binomial probability distribution:
, where x= number of successes , p=probability of success in each trial, n= sample size.
The probability that exactly 2 insects will survive =
Hence, the probability that exactly 2 insects will survive = 0.2501