The probability that he gets fewer than 3 of them correct is : 0.80
<h3>Analysis of the problem </h3>
The problem is a Binomial problem
n = 8
P(correct ) = 1/5
<h3>Determine the probability that a student gets fewer than 3 correct answers </h3>
P( 0<= x <=2 ) = binomcdf ( 8, 1/5, 2)
= ⁸C₂(1/5)² (4/5)⁶ + ⁸C₁(1/5)(4/5)⁷ + ⁸C₀(4/5)⁸
= 0.7969 ≈ 0.80
Hence we can conclude that The probability that he gets fewer than 3 of them correct is : 0.80
Learn more about binomial probability : brainly.com/question/9325204
#SPJ1
thomas edison was a good one or professor edison if you may
Considering the given discrete probability distribution, it is found that there is a 0.36 = 36% probability that Hugo buys fewer than 3 packs.
<h3>What is the discrete probability distribution?</h3>
Researching on the internet, it is found that the discrete probability distribution for the number of packs that Hugo buys is given by:
The probability that he buys fewer than 3 packs is given by:
P(X < 3) = P(X = 1) + P(X = 2).
Hence:
P(X < 3) = P(X = 1) + P(X = 2) = 0.2 + 0.16 = 0.36.
There is a 0.36 = 36% probability that Hugo buys fewer than 3 packs.
More can be learned about discrete probability distributions at brainly.com/question/24855677
