SAT Math Practice Question #34359 - SATify | SATify

#34359

average

statistics

data analysis

hard

120 sec

The table below shows the distribution of scores for two groups of students, Group A and Group B, on a math quiz. If the mean score for Group A is equal to the mean score for Group B, what is the value of $x$ ?

Score	Group A Frequency	Group B Frequency
10	3	4
20	5	$x$
30	2	3

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.