Answer:
Z scores of -2 or lower are considered unusually low. Since the z-score of a 49-cm head circunference is -2, it is an unusual measure.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Z scores of -2 or lower are considered unusually low, and zscores of 2 or higher are considered unusually high.
In this problem, we have that:
49cm head circunference unusual?
Z scores of -2 or lower are considered unusually low. Since the z-score of a 49-cm head circunference is -2, it is an unusual measure.
Answer:
ive never worked with cones but my best guess would be the third and fourth
Step-by-step explanation:
Think about it. The 80 is the y-intercept meaning that is the starting point or starting height where the rocket is launched from. The purpose of the expression is to show the height of the rocket over time.
You're answer will be 4 think of it as apples if you have 2 apples and a friend gives you 2 apples then you will have 4 apples all together
BEDMAS is a main strategy to simplify algebraic expressions. Following the order of operations ensures accuracy.
Inverse operations help solve equations by isolating the value(usually a variable) that you are trying to find. Or by rearranging the equation so that it can be simplified or solved easier.
A real world scenario would be conversions. By using ratios of conversions and manipulating the equation you can convert many things.