An srs of 25 recent birth records at the local hospital was selected. in the sample, the average birth weight was =119.6 ounces. suppose the standard deviation is known to be =6.5 ounces. assume that in the population of all babies born in this hospital, the birth weights follow a normal distribution, with mean based on the 25 recent birth records, the sampling distribution of the sample mean can be represented by:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

answer: x=3 and y=4

step-by-step explanation:

-9

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.