Answer:
12
Step-by-step explanation:
144 divided by 12 is 12
Take 25 and divide it by 38. 25/38= a decimal. Take and do the long division bridge, 25 on the iside and 38 on the outside. 38 does not go into 25 so you add a decimal point after the 25 and put a 0. now making the division equation 250/38 but dont forget to put aq decimal up top. Then you take 250/38 and you will get 6.57... but you will ormally roud the answer up so it would be .66
I think the value of x is 20°.
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:

Referring to a standard normal distribution table, and using z = 0.66, we find:

Therefore

The answer is: 0.2546