Answer:
D please give brainliest
Step-by-step explanation:
the sign would probably be a negative. imagine this - - - - - - and then + + +, cancel out the negatives and plus then you are left with more negatives than positive so the sign will take the negative sign.
Answer: The required probability is 0.615.
Step-by-step explanation:
Let A be the event that a product receives good reviews.
Let E₁ be the event that the product is highly successful.
Let E₂ be the event that the product is moderately successful.
Let E₃ be the event that the product is poor.

(a) What is the probability that a product attains a good review.
So, it becomes,

Hence, the required probability is 0.615.
80. this is bc the triangle must add up to 180 and 60+40=100