Standardized tests: In a particular year, the mean score on the ACT test was 20.4 and the standard deviation was 3.7. The mean score on the SAT mathematics test was 492 and the standard deviation was 123. The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Part: 0 / 40 of 4 Parts Complete Part 1 of 4 (a) Find the z-score for an ACT score of 26. The z-score for an ACT score of 26 is .

1.51

Step-by-step explanation:

Given that :

ACT Mean score (m) = 20.4

ACT standard deviation (σ) = 3.7

The Zscore for an ACT score of 26:

Zscore = (score - mean) / standard deviation

Zscore = (26 - 20.4) / 3.7

Zscore = 5.6 / 3.7

Zscore = 1.5135135

Zscore = 1.51 (2 decimal places)

one serving weight =   kg

food he will need = kg

Step-by-step explanation:

given data

cat food = 5 serving

food = third of a kilogram

Chase serving = 20 cats

to find out

how much does one serving weigh and  how many kilograms of food will he need

solution

we know here food serving = kg

and serving 5 so 1 serving =

one serving weigh = ×

one serving weight =   kg

and

if Chase serving is  20 cats

so food he will need = 20 ×   kg

food he will need =   kg

food he will need = kg