2000lb=1 ton
1 us ton is equal to 2000lbs
Answer:
55
Step-by-step explanation:
Amir picked 20, Becky picked 15 more which is 35
all together they picked 20 + 35 = 55
Answer:
16% of students will complete the exam in less than 60 minutes
Step-by-step explanation:
The Empirical Rule(68-95-99.7) states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 70
Standard deviation = 10
What percentage of students will complete the exam in less than 60 minutes
60 = 70-10
So 60 is one standard deviation below the mean
By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean, that is, from 60 to 80 minutes. The other 100-68 = 32% is outside this interval. Since the normal distribution is symmetric, 16% of those are below 60 and 16% of those are above 80.
16% of students will complete the exam in less than 60 minutes
Answer:
applying one way ANOVA:
R² = SSR / SST
= 0.133/1.807
=0.0734
Source of Variation SS df MS F P-value F0.05(2.27)
treatments 0.133 2 0.066 1.069 0.3574 3.354
error 1.675 27 0.062
Total 1.807 29
as p value is not significantly low:
Do the ANOVA results indicate that the null hypothesis (H0) can be rejected in favor of the alternative hypothesis (HA)? -No
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
i dont know the exact reason but the formula to problems like this is the actual number which is 5 in this sitaution and then multiply the numbers below it. For the equation i did 5x4x3x2x1 and i got 120
