Given:
Ten People
5 people = 30 years old
3 people = 32 years old
1 person = 31 years old
1 person = 65 years old
We need to arrange the ages in order from least to greatest.
30, 30, 30, 30, 30, 31, 32, 32, 32, 65
65 is the outlier.
A.) mean age without the outlier. count of the numbers : 9
5 x 30 = 150
1 x 31 = 31
3 x 32 =<u> 96</u>
total age 277
÷ # of pax<u> 9</u>
mean 30.77 round to the nearest tenth 30.80
b.) Standard deviation:
We need to calculate variance first:
5 pax : 30 - 30.80 = - 0.80 ⇒ -0.80² = 0.64 * 5pax = 3.20
1 pax : 31 - 30.80 = 0.20 ⇒ 0.20² = 0.04 * 1pax = 0.04
3 pax : 32 - 30.80 = 1.20 ⇒ 1.20² = 1.44 * 3 pax = 4.32
Variance : (3.20 + 0.04 + 4.32) / 9 pax = 7.56 / 9 = 0.84
Standard deviation is simply the square root of the variance.
Standard deviation = √0.84 = 0.916
0.916 round to nearest hundredths is 0.92
0.916 round to nearest tenths is 0.90
Answer:
x=115
Step-by-step explanation:
Straight angle = 180 degrees...
65 is accounted for so...
180-65=115
115 degrees is your final answer :)
Answer:
A
Step-by-step explanation:
68.54 + x = 76.7
-76.7 + 68.54 = 8.16
Answer:
<u>The annual profit if the baker sells 400 pies would be US$ 12,800</u>
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Annual profit in dollars from selling pies using p n( ) = 52n − 0.05n² , where n is the number of pies sold
Annual sales of the baker = 400 pies
2. Let's solve p for 400 pies
p n( ) = 52n − 0.05n²
p (n₄₀₀) = 52 * 400 − 0.05 * 400²
p (n₄₀₀) = 20,800 − 0.05 * 160,000
p (n₄₀₀) = 20,800 − 8,000
p (n₄₀₀) = 12,800
<u>The annual profit if the baker sells 400 pies would be US$ 12,800</u>
The answer would be A. 3.2 x 106 :)))
