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Range 0–10 11–20 21–30 31–40 41–50
Number of Students 8 12 30 25 15

The table shows the range of scores obtained by 9th grade students on a math test and the number of students in each range. If a student is picked at random, the probability that his or her score is between 21 and 40 is
.

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reneteye21
if you’re looking for the percentage it’s 61%
JeanaShupp

Answer:  [tex]\dfrac{11}{18}[/tex]

Step-by-step explanation:

From the given table , the total number 9th grades students gave math test =

[tex]8+12+30+25+15=90[/tex]

The number of 9th grades students got score between 21 and 40 = [tex]30+25=55[/tex]

Now,  If a student is picked at random, the probability that his or her score is between 21 and 40 is  is given by :-

[tex]\dfrac{55}{90}=\dfrac{11}{18}[/tex]

Hence, the probability that his or her score is between 21 and 40 is [tex]\dfrac{11}{18}[/tex]

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