Mathematics, 03.02.2020 20:59 karlaaag
200 elementary school students were surveyed to find their blood groups. of those, 55 were of blood group a, 85 of blood group b, and 21 of blood group o.
what is the probability that a randomly chosen student has either blood group a or blood group b?
b) 0.60
c) 0.70
d) 0.81
Answers: 1
Mathematics, 21.06.2019 18:00
Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).
Answers: 2
Mathematics, 21.06.2019 20:00
Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line
Answers: 1
200 elementary school students were surveyed to find their blood groups. of those, 55 were of blood...
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