Mrs. Sung gave a test in her trignonmetry class. The scores were normally distributed with a mean of 85 and a standard deviation
of 3.
What percent would you expect to score between 88 and 91? Round answer to the nearest tenth.
1 answer:
Answer and explanation:
67% as it's +/- one standard deviation from the mean
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subtract 4x from both sides
-2y=14-4x
divide each side by -2
y=2x+7
Answer: 15 times 12 i think maybe so 180
Step-by-step explanation:
Answer:
try -3
Step-by-step explanation:
The equation set up would look like this.. 16•26.2=416.32 of what Robertos completion of the marathon
Interest=1250-880=370
I=PRT
P=principal
r=rate in deicmal
t=time in years
1 month so t=1/12
P=880
I=370
370=880*r*1/12
370=220/3r
times both sides by 3
1110=220r
divdie both sides by 220
5.04545=r
505% interest
