The first one pretty sure :))))
Your answer would be 1/2 I just did this one on my work
and got it correct
Yes, that's true PROVIDED your test scores are normally distributed.
If they are, then more than 99% of your test scores are within three
standard deviations of the mean.
You told us that 3-sigma = 5.4 . So less than one score out of every
hundred tests you take is lower than 86.6 or higher than 97.4 .
You are remarkably consistent, so I guess Jupiter must have been
in its ascendancy next door to the house of Andromeda about an
hour before you were born, or some such nonsense.
<span>The answer is 9.52 kg.
The density (D) of is quotient of mass (m) and volume (V):
</span><span>D = m/V
It is given:
m = ?
D = 0.680 g/cm³
V = 14 L = 14 d</span>m³ (1 L = 1 dm³) = 14000 cm³<span>
</span>Since <span>D = m/V, then m = D*V
</span>m = 0.680 * <span>14000
= 9520 g
= 9.52 kg</span>
Answer:
Step-by-step explanation:
