Ask Question
21 November, 02:59

The marks obtain by 10 students are 25 30 21 55 47 10 15 17 45 35. What is the probability that a student selected at random has marks more than the average marks

+2
Answers (2)
  1. 21 November, 04:30
    0
    0.4

    Step-by-step explanation:

    Average: sum/10

    (25+30+21+55+47+10+15+17+45+35) / 10

    = 300/10 = 30

    More than 30: 55, 47, 45, 35

    Probability = 4/10 = 0.4
  2. 21 November, 05:33
    0
    Answer: Pr (> average score)

    = 2/5

    Step-by-step explanation:

    Pr (> average score) =

    Step 1: find the average score

    Average score = sum of all scores / number of scores

    =300/10 = 30

    Step2: select all scores greater than the average score: 55, 47,45 and 35

    Pr = no of expected outcomes / total no of outcomes

    =4/10, in simplest form = 2/5
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “The marks obtain by 10 students are 25 30 21 55 47 10 15 17 45 35. What is the probability that a student selected at random has marks more ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers