In his class, Dale conducted a survey to observe the distribution of eye color. The results are summarized as follows:

blue- 20
brown- 12
green- 10
amber- 8
hazel- 6
grey- 4
If a student is randomly chosen from the group, what is the chance of selecting a student with blue eyes? write your answer in the simplest form of a fraction.

7 answers

The total number of students surveyed is 20 + 12 + 10 + 8 + 6 + 4 = 60.

Therefore, the chance of selecting a student with blue eyes is 20/60 = 1/3.
a number from the list {2, 4, 5, 7, 9, 10, 12, 15, 18, 20} is to be picked at random. what is the probability of getting an even number? write your answer in the simplest form of fraction.
There are 5 even numbers in the list: 2, 4, 10, 12, 18.

The total number of numbers in the list is 10.

Therefore, the probability of getting an even number is 5/10 = 1/2.
both of those are wrong
Apologies for the mix up in my previous responses. Let me correct that:

Of the numbers in the list {2, 4, 5, 7, 9, 10, 12, 15, 18, 20}, the even numbers are 2, 4, 10, 12, 18, 20 (total of 6 even numbers).

The total number of numbers in the list is 10.

Therefore, the probability of getting an even number is 6/10 = 3/5.
A letter is to be pick at random from the English alphabet. if each letter is equally likely to be selected, what is the probability of selecting a consonant? Consonants are letters except for a, e, i, o , u. write your answer in the simplest form of fraction
There are 21 consonants in the English alphabet (excluding a, e, i, o, u), and there are a total of 26 letters in the alphabet.

Therefore, the probability of selecting a consonant is 21/26.