Nathan has an infection and he needs to be treated with penicillin
But there’s a 75% probability of him being allergic to penicillin
And to test if the skin reacts to penicillin, the test is 98% accuracy
So even if he has the allergy the test is only 98% accurate of identifying the allergy
Therefore we are asked to find the probability of both these events happening
Event 1 and event 2 both should happen then. When the ‘and’ function is used in probabilities then the probabilities of both events happening should be multiplied
Therefore probability that Nathan has the allergy and test predicts it is
= 75% x 98% = 0.735
The answer is D. 0.735
Answer:
The mean weight of the cats is 11.42 (rounded)
Step-by-step explanation:
To find the mean, you add up all the weights (12, 12, 9, 9, 11, 11, 16) and then divided the sum (80) of the weights by the number of cats (7)
12+12+9+9+11+11+16= 80
80 ÷ 7= 11.42857143 (I rounded my answer to 11.42)
I hope this was helpful. Have a wonderfull rest of your day!
Step-by-step explanation:
3/4x+3-2x=1/4+1/2x+5
x=2/-3
Answer:
7 adults, 12 students
Step-by-step explanation:
10 20 30 40 50
60 70
74 78 82 86 90
94 98 102 106 110 114 118
Answer:
{y,x} = {0,1}
Step-by-step explanation:
// Solve equation [1] for the variable y
[1] y = 3x - 3
// Plug this in for variable y in equation [2]
[2] -3•(3x-3) - 9x = -9
[2] - 18x = -18
// Solve equation [2] for the variable x
[2] 18x = 18
[2] x = 1
// By now we know this much :
y = 3x-3
x = 1
// Use the x value to solve for y
y = 3(1)-3 = 0
