Answer: variable is distributed normally, then approximately two-thirds of the population will within plus or minus one standard deviation of the mean
Step-by-step explanation:
The standard deviation is calculated as the square root of variance by determining each data point's deviation relative to the mean. If the data points are further from the mean, there is a higher deviation within the data set; thus, the more spread out the data, the higher the standard deviation.
Answer:
.
Step-by-step explanation:
It would be y=Mx+b that is the answer
Answer:
4.86
Step-by-step explanation:
Melanie uses 8.1 pints of blue paint and white paint for her bedroom
2/5 of this amount is blue paint
Therefore the amount of white paint can be calculated as follows
= 2/5
= 0.4×100
= 40%
60/100 × 8.1
= 0.6 × 8.1
= 4.86
Hence 4.86 pints of white paint will be used to paint the bedroom
Step-by-step explanation:
step 1. KITE is a kite
step 2. <ski + <kis + 90 = 180 (internal angles of a triangle has a sum of 180)
step 3. <ski + 25 = 90
step 4. <ski = 65°
step 5. <kes = <kis (angles across equal sides are equal)
step 6. <kes = 25°
step 7. <kie = <kis (they are the same angle)
step 8. <kie = 25°.
step 9. let's call ek = x and et = 1 5x
step 10. therefore x + 1.5x + x + 1.5x = 55
step 11. 5x = 55 or x = 11 = ek
step 12. et = 1.5x = 1.5(11) = 16.5.
