medium · SAT Math
A clinic tested 300 patients for a virus and classified each patient by age group and test result. Every patient received exactly one result. Positive Negative Total Under 40 16 144 160 40 and older 30 110 140 Total 46 254 300 A patient is selected at random from those Under 40 only. What is the probability that this patient tested Positive?
- 4/75
- 1/10
- 3/16
- 8/23
Sign up free to see the explanation and track your rank →
More SAT Math practice
- What is the greatest integer value of x that satisfies the inequality (2)/(3)(9 - 6x) ≥ 4x
- What is the value of c?
- If 5x - 12 = 3x + 8, what is the value of 2x?
- A print shop's total charge, in dollars, for an order of n p… — According to this function
- What is the price, in dollars, of one food ticket?
- Which of the following describes all values of x that satisfy both 2x + 1 > 5 and x - 3 <
- If 2x + y = 13 and 3x - y = 7, what is the value of x + y?
- What is the value of x+y?