Calculate the variance (S2) and the standard deviation (SD) of the seed weights. These values give you a sense of how variable the data in a particular set of measurements actually are.

Variance is calculated by subtracting each individual value (xi) from the mean (X), squaring it and adding all of these squared deviations from mean together. The total is then divided by N-1.

S2 (variance) = (X-xi )2
N-1

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.