a school has 320 girls and 250 boys the probability that a girls is left handed is 0.2 the probability that a boys is left handed is 0.1 estimate the number of the left handed stuidents in the school
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Answer:
4100
2/10=320
girls=1600
boys...
1/10=250
boys=2500
total students=4100
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320 (girls) + 250 (boys) = 570 (students in total)
0.2 + 0.1 = 0.3
0.3 = 30%
30% of 570 = 19
570 ÷ 10 = 57
57 ÷ 3 = 19
19 out of 570 students are left handed
BTW I know this is probably wrong, but if it's right, please say so!!
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