Colin invests £2200 into his bank account. He receives 2.5% per year simple interest. How much will Colin have after 3 years? Gi
1 answer:
<u>Answer:</u>
- Colin will have $2365 after 3 years.
<u>Step-by-step explanation:</u>
<u>Using PRT/100, we can find the interest and then sum it up with the principle amount.</u>
- => 2200 x 2.5 x 3/100 = Interest
- => 22 x 2.5 x 3 = Interest
- => 55 x 3 = Interest
- => 165 = Interest
- => 2200 + 165 = Total amount
- => $2365
Hence, <u>Colin will have $2365 after 3 years.</u>
Hoped this helped.
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Answer:
75%
88.89%
Step-by-step explanation:
Given :
Mean = 70
Standard deviation = 12
Since the data is said to be extremely skewed, we apply Chebyshev's theorem rather than the empirical rule :
The minimum proportion of observation between 46 and 94
Chebyshev's theorem :
1 - 1 / k²
k = number of standard deviations from the mean
k = (94 - 70) / 12 = 24 / 12 = 2
Hence, we have ;
1 - 1/2²
1 - 1/4
1 - 0.25 = 0.75
Hence, The minimum proportion of observation between 46 and 94 is 75%
Between 36 and 106 :
k = (106 - 70) / 12 ;
k = 36/12 = 3
Hence,
1 - 1/3² = 1 - 1/9 = 8/9 = 0.8888 = 88.89%
The minimum proportion of observation between 34 and 106 is 88.89%
