Answer:
The specificity of this test is expressed as:________
70%.
Step-by-step explanation:
a) Data and Calculations:
TEST RESULTS Disease Present Disease Absent Total
Positive for Factor X 40 60 100
Negative for Factor X 10 140 150
Total 50 200 250
Negative for X and Disease Absent = 140/200 * 100
= 0.7 * 100
= 70%
b) The specificity refers to the percentage of people who test negative for a specific disease among a group of people who do not have the disease. No test is 100% specific because some people who do not have the disease X will test positive for it (false positive). Therefore, we are testing for the true negative, that the 140 people who tested out of the 200 people who do not have the disease.
Answer:
The independent would be the 15 tickets and the dependent would be the t-shirt
Step-by-step explanation:
Answer:
-1 1/3, -3/4, 1/2, 0.7
Step-by-step explanation:
-1 1/3 = -1.33
-3/4 = -.75
1/2 = .5
0.7
N is the width and s is the length You can figure the rest out. Ther are many ways to do this. I believe in you.
Question 1 has infinitely many solutions and question 2 has only one solution.
