Marcus score is 13.7, the mean is 12.89, and the standard deviation is 1.95, so I’ll do ( 13.7 – 12.89)/ 1.95, Since Marcus' z-score is 0.415. The area to the left of the z-score is 65.9% so therefore Marcus did scored better than 65.9% of the students. So Marcus needs to score 98% better of all the other students in order for him to receive an actual certificate.
1/2 - 5/13 = 3/26 = 0.115
Because: 1/2 - 5/13 = 1 x 13 ÷ 2 x 13 - 5 x 2 ÷ 13 x 2 = 13/26 - 10/26
13/26 - 10/26 = 13 - 10 ÷26 = 3/26 or 0.115.
Hope helps-Aparri
No you type the numbers press = and poof
Answer:
$18.50 for each costume
Step-by-step explanation:
Since they spent a total of $444 and they bought a total of 24 costumes and they were all the same price you would just do $444 divided by 24 which would equal $18.50. So each costume costed $18.50.
Answer:
20 hours hope this helps :)
Step-by-step explanation:
