Decide whether mean or mode is a better representative value in the, following situations. i) A shopkeeper, who sells tooth paste tubes of different sizes, wants to decide which size is to be ordered more. ii) An invigilator wants to bring sufficient number of additional papers to the examination hall. iii) Preparation of the number of laddus for a marriage. iv) For finding the favorite cricketer in a class.

Decide whether mean or mode is a better representative value in the following situations. A shop keeper, who sells tooth paste tubes of different sizes, wants to decide which size is to be ordered more.

Decide whether mean or mode is a better representative value in the following situations. A shopkeeper, who sells toothpaste tubes of different sizes, wants to decide which size is. to be ordered more.

Decide whether mean or mode is a better representative value in the following situations. Preparation of the number of laddus for a marriage.

Decide whether mean or mode is a better representative value in the following situations. Preparation of the number of laddus for a marriage.

Decide whether mean or mode is a better representative value in the following situations. For finding the favorite cricketer in a class.

Decide whether mean or mode is a better representative value in the following situations. For finding the favourite cricketer in a class.

Decide whether mean or mode is a better representative value in the following situations. An invigilator wants to bring sufficient number of additional papers to the examination hall

In which of the following situations, is the mode an appropriate representative value? A shopkeeper selling shirts, needs to decide which size of shirts to order more.

The amount of energy released when an electron is added to an isolated gaseous atom to produce a monovalent anion is called electron affinity or first electron affinity or electron gain enthalpy. The first electron is given a negative sign as the addition of an electron to a neutral atom is an exoergic process. The addition of electron to A^(-1) requires energy to overcome the force of repulsion. Thus, the second electron affinity is an endoergic process. The magnitude of electron affinity depends on a number of factors such as (i) atomic size (ii) effective nuclear charge (iii) screening effect (iv) half and fully filled orbitals and (v) shape of orbital. In general, electron affinity increases as the atomic radii decrease in a period. However, there are exceptions when the atoms have stable configurations. In a group, electron affinity decreases as the size increases. However, the members of 3rd period have somewhat higher values than the members in the 2nd period of the same subgroups. Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species ?