What is the range of the function f(x)=3|2x-4|+5
1 answer:
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<u>Answer:</u>
Ella will need 6 lemons for 4 times the recipe
<u>Explanation:</u>
Given Ella used ¾ of a bag of lemon to make ½ liters of lemonade
Therefore, we can form an equation as:
¾ bag lemons = ½ liter lemonade
According to question,
Ella recipe is for 1 liter of lemonade
Lemons required for ½ liter lemonade = bag
Lemons required for 1 liter lemonade = = 3/2 bags
To make 4 times the recipe, she will require,
She will need 6 lemons for 4 times the recipe
Answer:
a. Left Skewed
b. More students scored above 70
c. No
d. 0.0008
e. standard deviation increases by 1.4142
Step-by-step explanation:
a. The distribution is Left skewed. The maximum possible score is 100 and the mean is 70, hence, there is a barrier preventing a long right tail.
-The scores to the left is only 20, the left therefore is longer.
-The median, 74, is higher than the mean, 70, thus the mean is more left leaning.
b.More students will score more than 70.
-the median is 74 suggesting that 50% plus have scored 74points +
- Given the mean is 70 points, it's therefore obvious that more than 50% of the students have score more than 70 points.
c. No. This is not a normal distribution therefore we cannot calculate the probability that a randomly chosen student scored above 75 using this distribution.
d. The sample size n is large, n>30, so we can use the central limit theorem to approximate the probability:
e. The standard deviation will increase by the square root of the decreament :
#Standard deviation increases by 1.4142