Answer :
Answer:
4/7=0.57
Step-by-step explanation:
We have 7 papers in the Box.
3 o those papers have vowels (2 a and one e) and one r
The probability of taking a vowel or the letter "r" is
P=(3+1)/7=4/7=0.57
Answer:
The probability that Rajiv chooses a slip of paper whit a vowel or the letter "r" is, [tex]P=\frac{4}{7}=0.571[/tex]
Step-by-step explanation:
Hi
First of all, we are going to calculate the probability of choosing a slip of paper with a vowel, as we have a total number of events is 7 ("algebra" word have 7 letters ), and 3 vowels, so [tex]P(v)=\frac{3}{7} =0.428[/tex]
The second step is to calculate the probability of choosing a slip of paper with the letter "r", as we have a total number of events is 7, and only one "r", so [tex]P(r)=\frac{1}{7} =0.142[/tex]
Finally, as the question is: What is the probability that Rajiv chooses a vowel or the letter "r"? And the word "or" is underlined because here is essential the fact that means the sum of both probabilities, therefore [tex]P=P(v)+P(r)=\frac{3}{7}+\frac{1}{7}=\frac{4}{7} =0.571[/tex]