If the mean of the following distribution is 53, find the value of (7x + 4y). [Table — Classes: 0-20, 20-40, 40-60, 60-80, 80-100; Frequency: 2, 10, x, 4, y; Total 40]
Subject: Mathematics | Topic: Statistics | Difficulty: MEDIUM
Options
- (A) 124
- (B) 154
- (C) 144
- (D) 133
Verified Answer
Option (C): 144
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