What is the value halp me
2 answers:
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First quartile of the distribution is, Q = 39.
i.e 75% of students have scored more than 39.
So, total number of students scored more than 39 are :
Therefore, number of students scored higher than 39 are 312.
Hence, this is the required solution.
Answer:
22
Step-by-step explanation:
Using the given expression and the sum, we can set up an equation and solve for the value of 'n':
Multiply both sides by '2':
n(n+1) = 506
Distribute: n² + n - 506 = 0
Factor: (n + 23) (n - 22) = 0
Set each equation equal to '0' and solve:
n + 23 = 0 n - 22 = 0
n = -23 or n = 22
Since the problem says the integers are positive, then n = 22.