a bag contains 6 red markers, 5 blue markers, and 4 green markers. a marker is randomly selected, its color…

a bag contains 6 red markers, 5 blue markers, and 4 green markers. a marker is randomly selected, its color is recorded, and it is returned to the bag. this is repeated 1050 times. how many times is it expected that a red marker will be selected? approximately 280 times approximately 350 times approximately 420 times approximately 630 times

a bag contains 6 red markers, 5 blue markers, and 4 green markers. a marker is randomly selected, its color is recorded, and it is returned to the bag. this is repeated 1050 times. how many times is it expected that a red marker will be selected? approximately 280 times approximately 350 times approximately 420 times approximately 630 times

Answer

Answer:

C. approximately 420 times

Explanation:

Step1: Calculate total number of markers

$6 + 5+4=15$

Step2: Find probability of selecting red marker

$P(\text{red})=\frac{6}{15}=\frac{2}{5}$

Step3: Calculate expected number of red - marker selections

Expected number = Probability×Number of trials. So, $\frac{2}{5}\times1050 = 420$