Answer:
307.72
Step-by-step explanation:
S=2nr²
S=2×3.14×7²
S=307.72
Answer:
Significant difference of 0.20
Step-by-step explanation:
No of student = 20
No of fruits available =4
EAch student is independent of the other.
Hence theoretical probability that a student will choose a banana is=1/4=0.25.
But actual experiments showed that only 1 student selected banana out of 20
Experimental probability that a student will choose a banana is.=1/20 =0.05
The difference between the two = 0.25-0.05 = 0.20
Thus there is a significant difference between Experimental probability that a student will choose a banana and theorical probability that a student will choose a banana
Answer:
D
Step-by-step explanation:
When the population standard deviation is unknown while constructing the confidence interval then the estimate of standard deviation calculated from sample is used and due to this the new type of variability arise and then for conducting a confidence interval for mean the t-distribution is used. For calculating confidence interval for mean there are two sampling distributions z distribution and t distribution. When sample size is small and population standard deviation is unknown then t-distribution is used.
Answer:
<h3>5ths</h3>
Step-by-step explanation:
Given that:
- Price of whole pizza (A) = 5 × 3 = $15
- Price of whole pizza (B) = 4.50 × 5 = $22.50
They make 8 whole pizzas.
Therefore
- Thirds (A) = 15 × 8 = $120
- Fifths (B) = 22.50 × 8 = $180
They'll make more money if they slice it into fifths.
180 - 120 = $60
Because if they slice it into thirds, total profit will be $60 less
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#IndonesianPride - kexcvi
