Praxis 5511 Practice Test Practice Question
If one student were to be randomly selected from the 35 students in Mrs. Cornwall's class, the probability is 0.40 that a female student would be selected. How many female students are there in Mrs. Cornwall's class?
Correct Answer: B
Rationale: To find the number of female students in Mrs. Cornwall's class, multiply the total number of students (35) by the probability of selecting a female student (0.40). This calculation yields 35 × 0.40 = 14.
Option A (12) is incorrect, as it does not reflect the probability given. Option C (18) exceeds the calculated number, suggesting a misunderstanding of the probability. Option D (21) also miscalculates the total, leading to an overestimation. Thus, 14 female students accurately corresponds to the probability provided.
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