Answer: 0.878
Step-by-step explanation:
Given : P( Internet access) = 80.5%= 0.805
P(cable television) = 82% = 0.82
P( Internet access and cable television) = 74.7% =0.747
Formula: P(A or B)= P(A ) + P(B) - P(A and B)
So, P( Internet access or cable television) = P( Internet access) + P(cable television) -P( Internet access and cable television)
= 0.805+0.82-0.747
= 0.878
The probability that a randomly selected household in the survey had either Internet access or cable = 0.878
Answer:
First prime factorize the number:
25 = 5 × 5
75 = 3 × 5 × 5
Then find the GCF:
GCF(25, 75)
= 5 × 5
= 25
Answer:
s = 2.8y
Step-by-step explanation:
Score is proportional to the amount of correctly answered question :
Given that:
Score earned by Rachael = s =70
Number of correctly answered question = y = 25
Hence,
Score α number of correctly answered question
s = ky
70 = 25k
k = 70/25
k = 2.8
Hence, one correct answer gives 2.8
Hence,
Score obtained = 2.8 * number of questions answered correctly
s = 2.8y
